General Information of the Disease (ID: DIS00020)
Name
Staphylococcus meningitis
ICD
ICD-11: 1B54
Resistance Map
Type(s) of Resistant Mechanism of This Disease
  ADTT: Aberration of the Drug's Therapeutic Target
  DISM: Drug Inactivation by Structure Modification
  EADR: Epigenetic Alteration of DNA, RNA or Protein
  IDUE: Irregularity in Drug Uptake and Drug Efflux
  UAPP: Unusual Activation of Pro-survival Pathway
Drug Resistance Data Categorized by Drug
Approved Drug(s)
23 drug(s) in total
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Chloramphenicol
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Drug Resistance Data Categorized by Their Corresponding Mechanisms
  Drug Inactivation by Structure Modification (DISM) Click to Show/Hide
Key Molecule: Chloramphenicol acetyltransferase gene (CATS) [4]
Resistant Disease Streptococci infection [ICD-11: 1B54.2]
Resistant Drug Chloramphenicol
Molecule Alteration Expression
Inherence
Experimental Note Identified from the Human Clinical Data
In Vitro Model Enterococcus faecalis strain JH2-2 1320322
Enterococcus faecalis strain pIP1326g 1351
Enterococcus faecalis strain pIP655 1351
Enterococcus faecalis strain pIP683 1351
Enterococcus faecalis strain pIP687 1351
Enterococcus faecium strain pIP1182 1352
Enterococcus faecium strain pIP1535 1352
Enterococcus faecium strain pIP1538 1352
Enterococcus faecium strain pIP1539 1352
Enterococcus faecium strain pIP1687 1352
Enterococcus faecium strain pIP713 1352
Streptococci strain A451 36470
Streptococci strain A453 36470
Streptococci strain A456 36470
Streptococci strain B109 1319
Streptococci strain B117 1319
Streptococci strain B118 1319
Streptococci strain B120 1319
Streptococci strain B126 1319
Streptococci strain B127 1319
Streptococci strain BM132 1319
Streptococci strain BM137 36470
Streptococci strain BM140 1319
Streptococci strain G44 1320
Streptococci strain G52 1320
Streptococci strain G54 1320
Experiment for
Molecule Alteration
Southern blotting assay
Mechanism Description An assay based on the utilization of degenerate primers that enable enzymatic amplification of an internal fragment of cat genes known to be present in gram-positive cocci was developed to identify the genes encoding chloramphenicol resistance in streptococci and enterococci. The functionality of this system was illustrated by the detection of cat genes belonging to four different hydridization classes represented by the staphylococcal genes catpC221, catpC194, catpSCS7, and the clostridial gene catP, and by the characterization of a new streptococcal cat gene designated catS.
Key Molecule: Chloramphenicol acetyltransferase (CAT) [5]
Resistant Disease Staphylococcus intermedius infection [ICD-11: 1B54.3]
Resistant Drug Chloramphenicol
Molecule Alteration Expression
Inherence
Experimental Note Identified from the Human Clinical Data
In Vitro Model Escherichia coli strain XL-1 Blue 562
A Staphylococcus intermedius strain isolated from a purulent skin infection of a dog 1285
Experiment for
Molecule Alteration
Dideoxy chain-termination method assay
Mechanism Description However, little is known about CmR in staphylococcal species pathogenic to animals. Recently, CmR plasmids have been isolated from 'equine's. sciuri, 'canine' S. epidermidis, 'porcine' S. hyicus and 'canine' S. intermedius strains. All staphy- lococcal CmR plasmids encode a common resistance mechanism, namely an inducible Cm acetyltransferase (CAT).
Ciprofloxacin XR
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Drug Resistance Data Categorized by Their Corresponding Mechanisms
  Irregularity in Drug Uptake and Drug Efflux (IDUE) Click to Show/Hide
Key Molecule: Quinolone resistance protein NorB (NORB) [6]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Ciprofloxacin XR
Molecule Alteration Expression
Up-regulation
Experimental Note Identified from the Human Clinical Data
In Vitro Model Escherichia coli 668369
Experiment for
Molecule Alteration
DNA microarray hybridization assay
Experiment for
Drug Resistance
Serial twofold agar dilutions assay
Mechanism Description MgrA was an indirect regulator of norB expression. The mgrA norB double mutant was reproducibly twofold more susceptible to the tested quinolones than the mgrA mutant.
Key Molecule: Quinolone resistance protein NorA (NORA) [7]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Ciprofloxacin XR
Molecule Alteration Expression
Inherence
Experimental Note Identified from the Human Clinical Data
In Vitro Model Escherichia coli HB101 634468
Staphylococcus aureus strain SA113 1280
Experiment for
Molecule Alteration
Dideoxy chain-termination method assay
Mechanism Description The norA gene cloned from chromosomal DNA of quinolone-resistant Staphylococcus aureus Tk2566 conferred relatively high resistance to hydrophilic quinolones such as norfloxacin, enoxacin, ofloxacin, and ciprofloxacin, but only low or no resistance at all to hydrophobic ones such as nalidixic acid, oxolinic acid, and sparfloxacin in S. aureus and Escherichia coli.
Key Molecule: Quinolone resistance protein NorA (NORA) [7]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Ciprofloxacin XR
Molecule Alteration Expression
Acquired
Experimental Note Identified from the Human Clinical Data
In Vitro Model Escherichia coli HB101 634468
Staphylococcus aureus strain SA113 1280
Experiment for
Molecule Alteration
Dideoxy chain-termination method assay
Mechanism Description The norA gene cloned from chromosomal DNA of quinolone-resistant Staphylococcus aureus Tk2566 conferred relatively high resistance to hydrophilic quinolones such as norfloxacin, enoxacin, ofloxacin, and ciprofloxacin, but only low or no resistance at all to hydrophobic ones such as nalidixic acid, oxolinic acid, and sparfloxacin in S. aureus and Escherichia coli. S. aureus SA113 (pTUS20) harboring a plasmid carrying the staphylococcal norA gene was 16 to 64 times more resistant to relatively hydrophilic quinolones.
  Unusual Activation of Pro-survival Pathway (UAPP) Click to Show/Hide
Key Molecule: HTH-type transcriptional regulator MgrA (MGRA) [6]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Ciprofloxacin XR
Molecule Alteration Expression
Up-regulation
Experimental Note Identified from the Human Clinical Data
In Vitro Model Escherichia coli 668369
Experiment for
Molecule Alteration
DNA microarray hybridization assay
Experiment for
Drug Resistance
Serial twofold agar dilutions assay
Mechanism Description MgrA was an indirect regulator of norB expression. The mgrA norB double mutant was reproducibly twofold more susceptible to the tested quinolones than the mgrA mutant.
Daptomycin
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Drug Resistance Data Categorized by Their Corresponding Mechanisms
  Unusual Activation of Pro-survival Pathway (UAPP) Click to Show/Hide
Key Molecule: Cardiolipin synthase 2 (CLS2) [8]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Daptomycin
Molecule Alteration Missense mutation
p.A23V+p.T33N+p.L52F+p.F60S
Experimental Note Identified from the Human Clinical Data
In Vitro Model Staphylococcus aureus isolates 1280
Staphylococcus aureus MRSA32 [A5948] 553567
Staphylococcus aureus RN6607 [A8115] 553573
Staphylococcus aureus RN9120 [A8117] 553574
Experiment for
Molecule Alteration
Whole genome sequence assay; Allelic frequency measurement assay
Experiment for
Drug Resistance
Broth microdilution method assay
Mechanism Description Mutation in each of these genes act similarly to reduce the net-negative charge of the cell membrane leading to electrorepulsion of daptomycin. They may act in isolation or in concert with each other, particularly for mutations in mprF and cls2.
Key Molecule: Phosphatidylglycerophosphate synthase (PGSA) [8]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Daptomycin
Molecule Alteration Missense mutation
p.V59D+p.A64V+p.K75N+p.Ins.G76;Q77+p.S177F
Experimental Note Identified from the Human Clinical Data
In Vitro Model Staphylococcus aureus isolates 1280
Staphylococcus aureus MRSA32 [A5948] 553567
Staphylococcus aureus RN6607 [A8115] 553573
Staphylococcus aureus RN9120 [A8117] 553574
Experiment for
Molecule Alteration
Whole genome sequence assay; Allelic frequency measurement assay
Experiment for
Drug Resistance
Broth microdilution method assay
Mechanism Description Mutation in each of these genes act similarly to reduce the net-negative charge of the cell membrane leading to electrorepulsion of daptomycin. They may act in isolation or in concert with each other, particularly for mutations in mprF and cls2.
Key Molecule: Phosphatidylglycerol lysyltransferase (MPREF) [9]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Daptomycin
Molecule Alteration Expression
Inherence
Experimental Note Identified from the Human Clinical Data
In Vitro Model Escherichia coli BL21(DE3) 469008
Experiment for
Molecule Alteration
TLC and Western blot analysis
Experiment for
Drug Resistance
Epsilometer test (E test) assay
Mechanism Description MprF does not only synthesize Lys-PG but also accomplishes translocation of Lys-PG from the inner to the outer surface of the membrane. Lys-PG mediates CAMP resistance by repulsing the cationic peptides from the outer surface of the membrane.
Diclofenac
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Drug Sensitivity Data Categorized by Their Corresponding Mechanisms
  Drug Inactivation by Structure Modification (DISM) Click to Show/Hide
Key Molecule: Beta-lactam-inducible penicillin-binding protein (MECA) [10]
Sensitive Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Sensitive Drug Diclofenac
Molecule Alteration Expression
Down-regulation
Experimental Note Discovered Using In-vivo Testing Model
Cell Pathway Regulation mecA/blaZ pathway Activation hsa01501
In Vivo Model Murine skin and soft tissue infection model Mus musculus
Experiment for
Molecule Alteration
Gene expression analysis; Cellular ATP level assay; Ethidium bromide efflux inhibition assay
Experiment for
Drug Resistance
CCK-8 assay
Mechanism Description High-dose diclofenac can inhibit the growth of MRSA, and does not easily induce drug-resistant mutations after continuous passage. Low-doses diclofenac can resensitize bacteria to beta-lactams, which help to circumvent drug resistance and improve the antibacterial efficacy of conventional antibiotics. Diclofenac can reduce the expression of genes and proteins associated with beta-lactam resistance, low dose diclofenac can inhibit MRSA antibiotic resistance via the mecA/blaZ pathway and related biofilms in implants.
  Unusual Activation of Pro-survival Pathway (UAPP) Click to Show/Hide
Key Molecule: Autolysins enzymes (ALTE) [10]
Sensitive Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Sensitive Drug Diclofenac
Molecule Alteration Expression
Down-regulation
Experimental Note Discovered Using In-vivo Testing Model
Cell Pathway Regulation mecA/blaZ pathway Activation hsa01501
In Vivo Model Murine skin and soft tissue infection model Mus musculus
Experiment for
Molecule Alteration
Gene expression analysis; Cellular ATP level assay; Ethidium bromide efflux inhibition assay
Experiment for
Drug Resistance
CCK-8 assay
Mechanism Description High-dose diclofenac can inhibit the growth of MRSA, and does not easily induce drug-resistant mutations after continuous passage. Low-doses diclofenac can resensitize bacteria to beta-lactams, which help to circumvent drug resistance and improve the antibacterial efficacy of conventional antibiotics. Diclofenac can reduce the expression of genes and proteins associated with beta-lactam resistance, low dose diclofenac can inhibit MRSA antibiotic resistance via the mecA/blaZ pathway and related biofilms in implants.
Key Molecule: Beta-lactamase (BLAC) [10]
Sensitive Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Sensitive Drug Diclofenac
Molecule Alteration Expression
Down-regulation
Experimental Note Discovered Using In-vivo Testing Model
Cell Pathway Regulation mecA/blaZ pathway Activation hsa01501
In Vivo Model Murine skin and soft tissue infection model Mus musculus
Experiment for
Molecule Alteration
Gene expression analysis; Cellular ATP level assay; Ethidium bromide efflux inhibition assay
Experiment for
Drug Resistance
CCK-8 assay
Mechanism Description High-dose diclofenac can inhibit the growth of MRSA, and does not easily induce drug-resistant mutations after continuous passage. Low-doses diclofenac can resensitize bacteria to beta-lactams, which help to circumvent drug resistance and improve the antibacterial efficacy of conventional antibiotics. Diclofenac can reduce the expression of genes and proteins associated with beta-lactam resistance, low dose diclofenac can inhibit MRSA antibiotic resistance via the mecA/blaZ pathway and related biofilms in implants.
Key Molecule: Aminoacyltransferase FemA (FEMA) [10]
Sensitive Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Sensitive Drug Diclofenac
Molecule Alteration Expression
Down-regulation
Experimental Note Discovered Using In-vivo Testing Model
Cell Pathway Regulation mecA/blaZ pathway Activation hsa01501
In Vivo Model Murine skin and soft tissue infection model Mus musculus
Experiment for
Molecule Alteration
Gene expression analysis; Cellular ATP level assay; Ethidium bromide efflux inhibition assay
Experiment for
Drug Resistance
CCK-8 assay
Mechanism Description High-dose diclofenac can inhibit the growth of MRSA, and does not easily induce drug-resistant mutations after continuous passage. Low-doses diclofenac can resensitize bacteria to beta-lactams, which help to circumvent drug resistance and improve the antibacterial efficacy of conventional antibiotics. Diclofenac can reduce the expression of genes and proteins associated with beta-lactam resistance, low dose diclofenac can inhibit MRSA antibiotic resistance via the mecA/blaZ pathway and related biofilms in implants.
Key Molecule: Aminoacyltransferase FemB (FEMB) [10]
Sensitive Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Sensitive Drug Diclofenac
Molecule Alteration Expression
Down-regulation
Experimental Note Discovered Using In-vivo Testing Model
Cell Pathway Regulation mecA/blaZ pathway Activation hsa01501
In Vivo Model Murine skin and soft tissue infection model Mus musculus
Experiment for
Molecule Alteration
Gene expression analysis; Cellular ATP level assay; Ethidium bromide efflux inhibition assay
Experiment for
Drug Resistance
CCK-8 assay
Mechanism Description High-dose diclofenac can inhibit the growth of MRSA, and does not easily induce drug-resistant mutations after continuous passage. Low-doses diclofenac can resensitize bacteria to beta-lactams, which help to circumvent drug resistance and improve the antibacterial efficacy of conventional antibiotics. Diclofenac can reduce the expression of genes and proteins associated with beta-lactam resistance, low dose diclofenac can inhibit MRSA antibiotic resistance via the mecA/blaZ pathway and related biofilms in implants.
Key Molecule: Formin binding protein 1 (FNBP1) [10]
Sensitive Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Sensitive Drug Diclofenac
Molecule Alteration Expression
Down-regulation
Experimental Note Discovered Using In-vivo Testing Model
Cell Pathway Regulation mecA/blaZ pathway Activation hsa01501
In Vivo Model Murine skin and soft tissue infection model Mus musculus
Experiment for
Molecule Alteration
Gene expression analysis; Cellular ATP level assay; Ethidium bromide efflux inhibition assay
Experiment for
Drug Resistance
CCK-8 assay
Mechanism Description High-dose diclofenac can inhibit the growth of MRSA, and does not easily induce drug-resistant mutations after continuous passage. Low-doses diclofenac can resensitize bacteria to beta-lactams, which help to circumvent drug resistance and improve the antibacterial efficacy of conventional antibiotics. Diclofenac can reduce the expression of genes and proteins associated with beta-lactam resistance, low dose diclofenac can inhibit MRSA antibiotic resistance via the mecA/blaZ pathway and related biofilms in implants.
Key Molecule: Mitochondrial trans-2-enoyl-CoA reductase (MECR) [10]
Sensitive Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Sensitive Drug Diclofenac
Molecule Alteration Expression
Down-regulation
Experimental Note Discovered Using In-vivo Testing Model
Cell Pathway Regulation mecA/blaZ pathway Activation hsa01501
In Vivo Model Murine skin and soft tissue infection model Mus musculus
Experiment for
Molecule Alteration
Gene expression analysis; Cellular ATP level assay; Ethidium bromide efflux inhibition assay
Experiment for
Drug Resistance
CCK-8 assay
Mechanism Description High-dose diclofenac can inhibit the growth of MRSA, and does not easily induce drug-resistant mutations after continuous passage. Low-doses diclofenac can resensitize bacteria to beta-lactams, which help to circumvent drug resistance and improve the antibacterial efficacy of conventional antibiotics. Diclofenac can reduce the expression of genes and proteins associated with beta-lactam resistance, low dose diclofenac can inhibit MRSA antibiotic resistance via the mecA/blaZ pathway and related biofilms in implants.
Key Molecule: UDP-N-acetylglucosamine 1-carboxyvinyltransferase 1 (MURA1) [10]
Sensitive Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Sensitive Drug Diclofenac
Molecule Alteration Expression
Down-regulation
Experimental Note Discovered Using In-vivo Testing Model
Cell Pathway Regulation mecA/blaZ pathway Activation hsa01501
In Vivo Model Murine skin and soft tissue infection model Mus musculus
Experiment for
Molecule Alteration
Gene expression analysis; Cellular ATP level assay; Ethidium bromide efflux inhibition assay
Experiment for
Drug Resistance
CCK-8 assay
Mechanism Description High-dose diclofenac can inhibit the growth of MRSA, and does not easily induce drug-resistant mutations after continuous passage. Low-doses diclofenac can resensitize bacteria to beta-lactams, which help to circumvent drug resistance and improve the antibacterial efficacy of conventional antibiotics. Diclofenac can reduce the expression of genes and proteins associated with beta-lactam resistance, low dose diclofenac can inhibit MRSA antibiotic resistance via the mecA/blaZ pathway and related biofilms in implants.
Key Molecule: UDP-N-acetylmuramate-L-alanine ligase (MURC) [10]
Sensitive Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Sensitive Drug Diclofenac
Molecule Alteration Expression
Down-regulation
Experimental Note Discovered Using In-vivo Testing Model
Cell Pathway Regulation mecA/blaZ pathway Activation hsa01501
In Vivo Model Murine skin and soft tissue infection model Mus musculus
Experiment for
Molecule Alteration
Gene expression analysis; Cellular ATP level assay; Ethidium bromide efflux inhibition assay
Experiment for
Drug Resistance
CCK-8 assay
Mechanism Description High-dose diclofenac can inhibit the growth of MRSA, and does not easily induce drug-resistant mutations after continuous passage. Low-doses diclofenac can resensitize bacteria to beta-lactams, which help to circumvent drug resistance and improve the antibacterial efficacy of conventional antibiotics. Diclofenac can reduce the expression of genes and proteins associated with beta-lactam resistance, low dose diclofenac can inhibit MRSA antibiotic resistance via the mecA/blaZ pathway and related biofilms in implants.
Doxorubicin
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Drug Sensitivity Data Categorized by Their Corresponding Mechanisms
  Aberration of the Drug's Therapeutic Target (ADTT) Click to Show/Hide
Key Molecule: Transmembrane protein 94 (TMEM94) [1]
Sensitive Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Sensitive Drug Doxorubicin
Molecule Alteration Methylation
Down-regulation
Experimental Note Revealed Based on the Cell Line Data
In Vitro Model S. aureus isolates 41687
Experiment for
Molecule Alteration
PCR; Docking assay
Experiment for
Drug Resistance
Antimicrobial susceptibility testing; Phenotypic assay; MIC assay; Checkerboard microdilution assay
Mechanism Description This study aimed to identify the prevalence of erythromycin and erythromycin-induced resistance and assess for potential inhibitors. A total of 99 isolates were purified from various clinical sources. Phenotypic detection of macrolide-lincosamide-streptogramin B (MLSB)-resistance phenotypes was performed by D-test. MLSB-resistance genes were identified using PCR. Different compounds were tested for their effects on erythromycin and inducible clindamycin resistance by broth microdilution and checkerboard microdilution methods. The obtained data were evaluated using docking analysis. Ninety-one isolates were S. aureus. The prevalence of constitutive MLSB, inducible MLSB, and macrolide-streptogramin (MS) phenotypes was 39.6%, 14.3%, and 2.2%, respectively. Genes including ermC, ermA, ermB, msrA, msrB, lnuA, and mphC were found in 82.6%, 5.8%, 7.7%, 3.8%, 3.8%, 13.5%, and 3.8% of isolates, respectively. Erythromycin resistance was significantly reduced by doxorubicin, neomycin, and omeprazole. Quinine, ketoprofen, and fosfomycin combated and reversed erythromycin/clindamycin-induced resistance. This study highlighted the significance of managing antibiotic resistance and overcoming clindamycin treatment failure. Doxorubicin, neomycin, omeprazole, quinine, ketoprofen, and fosfomycin could be potential inhibitors of erythromycin and inducible clindamycin resistance.
Enoxacin
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Drug Resistance Data Categorized by Their Corresponding Mechanisms
  Irregularity in Drug Uptake and Drug Efflux (IDUE) Click to Show/Hide
Key Molecule: Quinolone resistance protein NorA (NORA) [7]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Enoxacin
Molecule Alteration Expression
Inherence
Experimental Note Identified from the Human Clinical Data
In Vitro Model Escherichia coli HB101 634468
Staphylococcus aureus strain SA113 1280
Experiment for
Molecule Alteration
Dideoxy chain-termination method assay
Mechanism Description The norA gene cloned from chromosomal DNA of quinolone-resistant Staphylococcus aureus Tk2566 conferred relatively high resistance to hydrophilic quinolones such as norfloxacin, enoxacin, ofloxacin, and ciprofloxacin, but only low or no resistance at all to hydrophobic ones such as nalidixic acid, oxolinic acid, and sparfloxacin in S. aureus and Escherichia coli.
Key Molecule: Quinolone resistance protein NorA (NORA) [7]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Enoxacin
Molecule Alteration Expression
Acquired
Experimental Note Identified from the Human Clinical Data
In Vitro Model Escherichia coli HB101 634468
Staphylococcus aureus strain SA113 1280
Experiment for
Molecule Alteration
Dideoxy chain-termination method assay
Mechanism Description The norA gene cloned from chromosomal DNA of quinolone-resistant Staphylococcus aureus Tk2566 conferred relatively high resistance to hydrophilic quinolones such as norfloxacin, enoxacin, ofloxacin, and ciprofloxacin, but only low or no resistance at all to hydrophobic ones such as nalidixic acid, oxolinic acid, and sparfloxacin in S. aureus and Escherichia coli. S. aureus SA113 (pTUS20) harboring a plasmid carrying the staphylococcal norA gene was 16 to 64 times more resistant to relatively hydrophilic quinolones.
Fosfomycin
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Drug Sensitivity Data Categorized by Their Corresponding Mechanisms
  Aberration of the Drug's Therapeutic Target (ADTT) Click to Show/Hide
Key Molecule: Transmembrane protein 94 (TMEM94) [1]
Sensitive Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Sensitive Drug Fosfomycin
Molecule Alteration Methylation
Down-regulation
Experimental Note Revealed Based on the Cell Line Data
In Vitro Model S. aureus isolates 41687
Experiment for
Molecule Alteration
PCR; Docking assay
Experiment for
Drug Resistance
Antimicrobial susceptibility testing; Phenotypic assay; MIC assay; Checkerboard microdilution assay
Mechanism Description This study aimed to identify the prevalence of erythromycin and erythromycin-induced resistance and assess for potential inhibitors. A total of 99 isolates were purified from various clinical sources. Phenotypic detection of macrolide-lincosamide-streptogramin B (MLSB)-resistance phenotypes was performed by D-test. MLSB-resistance genes were identified using PCR. Different compounds were tested for their effects on erythromycin and inducible clindamycin resistance by broth microdilution and checkerboard microdilution methods. The obtained data were evaluated using docking analysis. Ninety-one isolates were S. aureus. The prevalence of constitutive MLSB, inducible MLSB, and macrolide-streptogramin (MS) phenotypes was 39.6%, 14.3%, and 2.2%, respectively. Genes including ermC, ermA, ermB, msrA, msrB, lnuA, and mphC were found in 82.6%, 5.8%, 7.7%, 3.8%, 3.8%, 13.5%, and 3.8% of isolates, respectively. Erythromycin resistance was significantly reduced by doxorubicin, neomycin, and omeprazole. Quinine, ketoprofen, and fosfomycin combated and reversed erythromycin/clindamycin-induced resistance. This study highlighted the significance of managing antibiotic resistance and overcoming clindamycin treatment failure. Doxorubicin, neomycin, omeprazole, quinine, ketoprofen, and fosfomycin could be potential inhibitors of erythromycin and inducible clindamycin resistance.
Framycetin
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Drug Sensitivity Data Categorized by Their Corresponding Mechanisms
  Aberration of the Drug's Therapeutic Target (ADTT) Click to Show/Hide
Key Molecule: Transmembrane protein 94 (TMEM94) [1]
Sensitive Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Sensitive Drug Framycetin
Molecule Alteration Methylation
Down-regulation
Experimental Note Revealed Based on the Cell Line Data
In Vitro Model S. aureus isolates 41687
Experiment for
Molecule Alteration
PCR; Docking assay
Experiment for
Drug Resistance
Antimicrobial susceptibility testing; Phenotypic assay; MIC assay; Checkerboard microdilution assay
Mechanism Description This study aimed to identify the prevalence of erythromycin and erythromycin-induced resistance and assess for potential inhibitors. A total of 99 isolates were purified from various clinical sources. Phenotypic detection of macrolide-lincosamide-streptogramin B (MLSB)-resistance phenotypes was performed by D-test. MLSB-resistance genes were identified using PCR. Different compounds were tested for their effects on erythromycin and inducible clindamycin resistance by broth microdilution and checkerboard microdilution methods. The obtained data were evaluated using docking analysis. Ninety-one isolates were S. aureus. The prevalence of constitutive MLSB, inducible MLSB, and macrolide-streptogramin (MS) phenotypes was 39.6%, 14.3%, and 2.2%, respectively. Genes including ermC, ermA, ermB, msrA, msrB, lnuA, and mphC were found in 82.6%, 5.8%, 7.7%, 3.8%, 3.8%, 13.5%, and 3.8% of isolates, respectively. Erythromycin resistance was significantly reduced by doxorubicin, neomycin, and omeprazole. Quinine, ketoprofen, and fosfomycin combated and reversed erythromycin/clindamycin-induced resistance. This study highlighted the significance of managing antibiotic resistance and overcoming clindamycin treatment failure. Doxorubicin, neomycin, omeprazole, quinine, ketoprofen, and fosfomycin could be potential inhibitors of erythromycin and inducible clindamycin resistance.
Gentamicin
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Drug Resistance Data Categorized by Their Corresponding Mechanisms
  Unusual Activation of Pro-survival Pathway (UAPP) Click to Show/Hide
Key Molecule: Phosphatidylglycerol lysyltransferase (MPREF) [9]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Gentamicin
Molecule Alteration Expression
Inherence
Experimental Note Identified from the Human Clinical Data
In Vitro Model Escherichia coli BL21(DE3) 469008
Experiment for
Molecule Alteration
TLC and Western blot analysis
Experiment for
Drug Resistance
Epsilometer test (E test) assay
Mechanism Description MprF does not only synthesize Lys-PG but also accomplishes translocation of Lys-PG from the inner to the outer surface of the membrane. Lys-PG mediates CAMP resistance by repulsing the cationic peptides from the outer surface of the membrane.
Ketoprofen
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Drug Sensitivity Data Categorized by Their Corresponding Mechanisms
  Aberration of the Drug's Therapeutic Target (ADTT) Click to Show/Hide
Key Molecule: Transmembrane protein 94 (TMEM94) [1]
Sensitive Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Sensitive Drug Ketoprofen
Molecule Alteration Methylation
Down-regulation
Experimental Note Revealed Based on the Cell Line Data
In Vitro Model S. aureus isolates 41687
Experiment for
Molecule Alteration
PCR; Docking assay
Experiment for
Drug Resistance
Antimicrobial susceptibility testing; Phenotypic assay; MIC assay; Checkerboard microdilution assay
Mechanism Description This study aimed to identify the prevalence of erythromycin and erythromycin-induced resistance and assess for potential inhibitors. A total of 99 isolates were purified from various clinical sources. Phenotypic detection of macrolide-lincosamide-streptogramin B (MLSB)-resistance phenotypes was performed by D-test. MLSB-resistance genes were identified using PCR. Different compounds were tested for their effects on erythromycin and inducible clindamycin resistance by broth microdilution and checkerboard microdilution methods. The obtained data were evaluated using docking analysis. Ninety-one isolates were S. aureus. The prevalence of constitutive MLSB, inducible MLSB, and macrolide-streptogramin (MS) phenotypes was 39.6%, 14.3%, and 2.2%, respectively. Genes including ermC, ermA, ermB, msrA, msrB, lnuA, and mphC were found in 82.6%, 5.8%, 7.7%, 3.8%, 3.8%, 13.5%, and 3.8% of isolates, respectively. Erythromycin resistance was significantly reduced by doxorubicin, neomycin, and omeprazole. Quinine, ketoprofen, and fosfomycin combated and reversed erythromycin/clindamycin-induced resistance. This study highlighted the significance of managing antibiotic resistance and overcoming clindamycin treatment failure. Doxorubicin, neomycin, omeprazole, quinine, ketoprofen, and fosfomycin could be potential inhibitors of erythromycin and inducible clindamycin resistance.
Macrolides
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Drug Resistance Data Categorized by Their Corresponding Mechanisms
  Aberration of the Drug's Therapeutic Target (ADTT) Click to Show/Hide
Key Molecule: Erythromycin resistance protein (ERM33) [11]
Resistant Disease Staphylococcus sciuri infection [ICD-11: 1B54.1]
Resistant Drug Macrolides
Molecule Alteration Expression
Gene recombination
Experimental Note Identified from the Human Clinical Data
In Vitro Model Staphylococcus sciuri plasmid pSCFS1 1296
Experiment for
Molecule Alteration
Sequence analysis
Experiment for
Drug Resistance
MIC assay
Mechanism Description Staphylococcus sciuri Gene erm(33), Encoding Inducible Resistance to Macrolides, Lincosamides, and Streptogramin B Antibiotics, Is a Product of Recombination between erm(C) and erm(A).
Moxifloxacin
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Drug Resistance Data Categorized by Their Corresponding Mechanisms
  Irregularity in Drug Uptake and Drug Efflux (IDUE) Click to Show/Hide
Key Molecule: Quinolone resistance protein NorB (NORB) [6]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Moxifloxacin
Molecule Alteration Expression
Up-regulation
Experimental Note Identified from the Human Clinical Data
In Vitro Model Escherichia coli 668369
Experiment for
Molecule Alteration
DNA microarray hybridization assay
Experiment for
Drug Resistance
Serial twofold agar dilutions assay
Mechanism Description MgrA was an indirect regulator of norB expression. The mgrA norB double mutant was reproducibly twofold more susceptible to the tested quinolones than the mgrA mutant.
  Unusual Activation of Pro-survival Pathway (UAPP) Click to Show/Hide
Key Molecule: HTH-type transcriptional regulator MgrA (MGRA) [6]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Moxifloxacin
Molecule Alteration Expression
Up-regulation
Experimental Note Identified from the Human Clinical Data
In Vitro Model Escherichia coli 668369
Experiment for
Molecule Alteration
DNA microarray hybridization assay
Experiment for
Drug Resistance
Serial twofold agar dilutions assay
Mechanism Description MgrA was an indirect regulator of norB expression. The mgrA norB double mutant was reproducibly twofold more susceptible to the tested quinolones than the mgrA mutant.
Norfloxacin
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Drug Resistance Data Categorized by Their Corresponding Mechanisms
  Irregularity in Drug Uptake and Drug Efflux (IDUE) Click to Show/Hide
Key Molecule: Quinolone resistance protein NorB (NORB) [6]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Norfloxacin
Molecule Alteration Expression
Up-regulation
Experimental Note Identified from the Human Clinical Data
In Vitro Model Escherichia coli 668369
Experiment for
Molecule Alteration
DNA microarray hybridization assay
Experiment for
Drug Resistance
Serial twofold agar dilutions assay
Mechanism Description MgrA was an indirect regulator of norB expression. The mgrA norB double mutant was reproducibly twofold more susceptible to the tested quinolones than the mgrA mutant.
Key Molecule: Quinolone resistance protein NorA (NORA) [7]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Norfloxacin
Molecule Alteration Expression
Inherence
Experimental Note Identified from the Human Clinical Data
In Vitro Model Escherichia coli HB101 634468
Staphylococcus aureus strain SA113 1280
Experiment for
Molecule Alteration
Dideoxy chain-termination method assay
Mechanism Description The norA gene cloned from chromosomal DNA of quinolone-resistant Staphylococcus aureus Tk2566 conferred relatively high resistance to hydrophilic quinolones such as norfloxacin, enoxacin, ofloxacin, and ciprofloxacin, but only low or no resistance at all to hydrophobic ones such as nalidixic acid, oxolinic acid, and sparfloxacin in S. aureus and Escherichia coli.
Key Molecule: Quinolone resistance protein NorA (NORA) [7]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Norfloxacin
Molecule Alteration Expression
Acquired
Experimental Note Identified from the Human Clinical Data
In Vitro Model Escherichia coli HB101 634468
Staphylococcus aureus strain SA113 1280
Experiment for
Molecule Alteration
Dideoxy chain-termination method assay
Mechanism Description The norA gene cloned from chromosomal DNA of quinolone-resistant Staphylococcus aureus Tk2566 conferred relatively high resistance to hydrophilic quinolones such as norfloxacin, enoxacin, ofloxacin, and ciprofloxacin, but only low or no resistance at all to hydrophobic ones such as nalidixic acid, oxolinic acid, and sparfloxacin in S. aureus and Escherichia coli. S. aureus SA113 (pTUS20) harboring a plasmid carrying the staphylococcal norA gene was 16 to 64 times more resistant to relatively hydrophilic quinolones.
  Unusual Activation of Pro-survival Pathway (UAPP) Click to Show/Hide
Key Molecule: HTH-type transcriptional regulator MgrA (MGRA) [6]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Norfloxacin
Molecule Alteration Expression
Up-regulation
Experimental Note Identified from the Human Clinical Data
In Vitro Model Escherichia coli 668369
Experiment for
Molecule Alteration
DNA microarray hybridization assay
Experiment for
Drug Resistance
Serial twofold agar dilutions assay
Mechanism Description MgrA was an indirect regulator of norB expression. The mgrA norB double mutant was reproducibly twofold more susceptible to the tested quinolones than the mgrA mutant.
Novobiocin
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Drug Resistance Data Categorized by Their Corresponding Mechanisms
  Aberration of the Drug's Therapeutic Target (ADTT) Click to Show/Hide
Key Molecule: DNA topoisomerase 4 subunit B (PARE) [12]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Novobiocin
Molecule Alteration Missense mutation
p.G78S
Experimental Note Identified from the Human Clinical Data
In Vitro Model Staphylococcus aureus RN4220 1280
Experiment for
Molecule Alteration
PCR amplification and DNA sequence assay
Experiment for
Drug Resistance
Twofold agar dilution method assay
Mechanism Description At first, successive point mutations specifically occurred in gyrB; next, a point mutation occurred in parE; finally, a point mutation occurred in gyrB again. The accumulation of mutations in both the gyrB and the parE genes is associated with high-level resistance to novobiocin.
Key Molecule: DNA topoisomerase 4 subunit B (PARE) [12]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Novobiocin
Molecule Alteration Missense mutation
p.R136G
Experimental Note Identified from the Human Clinical Data
In Vitro Model Staphylococcus aureus RN4220 1280
Experiment for
Molecule Alteration
PCR amplification and DNA sequence assay
Experiment for
Drug Resistance
Twofold agar dilution method assay
Mechanism Description At first, successive point mutations specifically occurred in gyrB; next, a point mutation occurred in parE; finally, a point mutation occurred in gyrB again. The accumulation of mutations in both the gyrB and the parE genes is associated with high-level resistance to novobiocin.
Key Molecule: DNA topoisomerase 4 subunit B (PARE) [12]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Novobiocin
Molecule Alteration Missense mutation
p.A89G
Experimental Note Identified from the Human Clinical Data
In Vitro Model Staphylococcus aureus RN4220 1280
Experiment for
Molecule Alteration
PCR amplification and DNA sequence assay
Experiment for
Drug Resistance
Twofold agar dilution method assay
Mechanism Description At first, successive point mutations specifically occurred in gyrB; next, a point mutation occurred in parE; finally, a point mutation occurred in gyrB again. The accumulation of mutations in both the gyrB and the parE genes is associated with high-level resistance to novobiocin.
Key Molecule: DNA topoisomerase 4 subunit B (PARE) [12]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Novobiocin
Molecule Alteration Missense mutation
p.S128L
Experimental Note Identified from the Human Clinical Data
In Vitro Model Staphylococcus aureus RN4220 1280
Experiment for
Molecule Alteration
PCR amplification and DNA sequence assay
Experiment for
Drug Resistance
Twofold agar dilution method assay
Mechanism Description At first, successive point mutations specifically occurred in gyrB; next, a point mutation occurred in parE; finally, a point mutation occurred in gyrB again. The accumulation of mutations in both the gyrB and the parE genes is associated with high-level resistance to novobiocin.
Ofloxacin
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Drug Resistance Data Categorized by Their Corresponding Mechanisms
  Irregularity in Drug Uptake and Drug Efflux (IDUE) Click to Show/Hide
Key Molecule: Quinolone resistance protein NorA (NORA) [7]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Ofloxacin
Molecule Alteration Expression
Inherence
Experimental Note Identified from the Human Clinical Data
In Vitro Model Escherichia coli HB101 634468
Staphylococcus aureus strain SA113 1280
Experiment for
Molecule Alteration
Dideoxy chain-termination method assay
Mechanism Description The norA gene cloned from chromosomal DNA of quinolone-resistant Staphylococcus aureus Tk2566 conferred relatively high resistance to hydrophilic quinolones such as norfloxacin, enoxacin, ofloxacin, and ciprofloxacin, but only low or no resistance at all to hydrophobic ones such as nalidixic acid, oxolinic acid, and sparfloxacin in S. aureus and Escherichia coli.
Key Molecule: Quinolone resistance protein NorA (NORA) [7]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Ofloxacin
Molecule Alteration Expression
Acquired
Experimental Note Identified from the Human Clinical Data
In Vitro Model Escherichia coli HB101 634468
Staphylococcus aureus strain SA113 1280
Experiment for
Molecule Alteration
Dideoxy chain-termination method assay
Mechanism Description The norA gene cloned from chromosomal DNA of quinolone-resistant Staphylococcus aureus Tk2566 conferred relatively high resistance to hydrophilic quinolones such as norfloxacin, enoxacin, ofloxacin, and ciprofloxacin, but only low or no resistance at all to hydrophobic ones such as nalidixic acid, oxolinic acid, and sparfloxacin in S. aureus and Escherichia coli. S. aureus SA113 (pTUS20) harboring a plasmid carrying the staphylococcal norA gene was 16 to 64 times more resistant to relatively hydrophilic quinolones.
Oxacillin
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Drug Resistance Data Categorized by Their Corresponding Mechanisms
  Epigenetic Alteration of DNA, RNA or Protein (EADR) Click to Show/Hide
Key Molecule: Membrane-associated protein TcaA (tcaA) [2]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Oxacillin
Molecule Alteration Expression
.
Experimental Note Revealed Based on the Cell Line Data
Experiment for
Molecule Alteration
qPCR
Experiment for
Drug Resistance
E-test assay
Mechanism Description The MIC of penicillin plus clavulanate decreased from 3 mg/L to 0.064 mg/L and that of oxacillin decreased from 16 to 0.5 mg/L when?tcaA?was knocked out in the LAC strain. Compared with wild-type MRSA isolates, when?tcaA?was deleted, all selected strains were more susceptible to beta-lactams. Susceptibility to ceftobiprole was restored in the ceftobiprole-resistant strain when?tcaA?was deleted.?tcaA?knockout caused "log-like" abnormal division of MRSA, and?tcaA?deficiency mediated low expression of?mecA, ponA, and?murA2. tcaA is a potential resistance breaker target for beta-lactams, including ceftobiprole, in MRSA.
Drug Sensitivity Data Categorized by Their Corresponding Mechanisms
  Epigenetic Alteration of DNA, RNA or Protein (EADR) Click to Show/Hide
Key Molecule: Membrane-associated protein TcaA (tcaA) [2]
Sensitive Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Sensitive Drug Oxacillin
Molecule Alteration Expression
.
Experimental Note Revealed Based on the Cell Line Data
Experiment for
Molecule Alteration
qPCR
Experiment for
Drug Resistance
E-test assay
Mechanism Description The MIC of penicillin plus clavulanate decreased from 3 mg/L to 0.064 mg/L and that of oxacillin decreased from 16 to 0.5 mg/L when?tcaA?was knocked out in the LAC strain. Compared with wild-type MRSA isolates, when?tcaA?was deleted, all selected strains were more susceptible to beta-lactams. Susceptibility to ceftobiprole was restored in the ceftobiprole-resistant strain when?tcaA?was deleted.?tcaA?knockout caused "log-like" abnormal division of MRSA, and?tcaA?deficiency mediated low expression of?mecA, ponA, and?murA2. tcaA is a potential resistance breaker target for beta-lactams, including ceftobiprole, in MRSA.
Quinine
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Drug Sensitivity Data Categorized by Their Corresponding Mechanisms
  Aberration of the Drug's Therapeutic Target (ADTT) Click to Show/Hide
Key Molecule: Transmembrane protein 94 (TMEM94) [1]
Sensitive Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Sensitive Drug Quinine
Molecule Alteration Methylation
Down-regulation
Experimental Note Revealed Based on the Cell Line Data
In Vitro Model S. aureus isolates 41687
Experiment for
Molecule Alteration
PCR; Docking assay
Experiment for
Drug Resistance
Antimicrobial susceptibility testing; Phenotypic assay; MIC assay; Checkerboard microdilution assay
Mechanism Description This study aimed to identify the prevalence of erythromycin and erythromycin-induced resistance and assess for potential inhibitors. A total of 99 isolates were purified from various clinical sources. Phenotypic detection of macrolide-lincosamide-streptogramin B (MLSB)-resistance phenotypes was performed by D-test. MLSB-resistance genes were identified using PCR. Different compounds were tested for their effects on erythromycin and inducible clindamycin resistance by broth microdilution and checkerboard microdilution methods. The obtained data were evaluated using docking analysis. Ninety-one isolates were S. aureus. The prevalence of constitutive MLSB, inducible MLSB, and macrolide-streptogramin (MS) phenotypes was 39.6%, 14.3%, and 2.2%, respectively. Genes including ermC, ermA, ermB, msrA, msrB, lnuA, and mphC were found in 82.6%, 5.8%, 7.7%, 3.8%, 3.8%, 13.5%, and 3.8% of isolates, respectively. Erythromycin resistance was significantly reduced by doxorubicin, neomycin, and omeprazole. Quinine, ketoprofen, and fosfomycin combated and reversed erythromycin/clindamycin-induced resistance. This study highlighted the significance of managing antibiotic resistance and overcoming clindamycin treatment failure. Doxorubicin, neomycin, omeprazole, quinine, ketoprofen, and fosfomycin could be potential inhibitors of erythromycin and inducible clindamycin resistance.
Rifabutin
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Drug Resistance Data Categorized by Their Corresponding Mechanisms
  Aberration of the Drug's Therapeutic Target (ADTT) Click to Show/Hide
Key Molecule: DNA-directed RNA polymerase subunit beta (RPOB) [13]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Rifabutin
Molecule Alteration Missense mutation
p.H481N
Experimental Note Identified from the Human Clinical Data
In Vitro Model Staphylococcus aureus strain T109 1280
Staphylococcus aureus strain T112 1280
Staphylococcus aureus strain T113 1280
Staphylococcus aureus strain T115 1280
Staphylococcus aureus strain T118 1280
Staphylococcus aureus strain T124 1280
Staphylococcus aureus strain T161 1280
Staphylococcus aureus strain T166 1280
Staphylococcus aureus strain T20 1280
Staphylococcus aureus strain T211 1280
Staphylococcus aureus strain T212 1280
Staphylococcus aureus strain T23 1280
Staphylococcus aureus strain T236 1280
Staphylococcus aureus strain T23aa 1280
Staphylococcus aureus strain T23aac 1280
Staphylococcus aureus strain T23bb 1280
Staphylococcus aureus strain T248 1280
Staphylococcus aureus strain T249 1280
Staphylococcus aureus strain T25 1280
Staphylococcus aureus strain T250 1280
Staphylococcus aureus strain T262 1280
Staphylococcus aureus strain T264 1280
Staphylococcus aureus strain T295 1280
Staphylococcus aureus strain T296 1280
Staphylococcus aureus strain T297 1280
Staphylococcus aureus strain T36 1280
Staphylococcus aureus strain T38 1280
Staphylococcus aureus strain T382 1280
Staphylococcus aureus strain T38aa 1280
Staphylococcus aureus strain T38bb 1280
Staphylococcus aureus strain T397 1280
Staphylococcus aureus strain T398 1280
Staphylococcus aureus strain T399 1280
Staphylococcus aureus strain T4 1280
Staphylococcus aureus strain T400 1280
Staphylococcus aureus strain T401 1280
Staphylococcus aureus strain T402 1280
Staphylococcus aureus strain T403 1280
Staphylococcus aureus strain T404 1280
Staphylococcus aureus strain T46 1280
Staphylococcus aureus strain T59 1280
Staphylococcus aureus strain T66 1280
Experiment for
Molecule Alteration
DNA sequencing assay
Experiment for
Drug Resistance
Agar dilution method assay
Mechanism Description Twelve mutational changes at 10 positions were identified, with 473Ala-Thr representing a new mutation site. New amino acid substitutions, 465Gln-Arg, 466Leu-Ser, 468Gln-Lys, and 477Ala-Thr in cluster I and 527Ile-Met and 529Ser-Leu in cluster II, were described, thereby emphasizing the high variability of these amino acid positions. Codon 481 was mutated on 32 separate occasions, which indicates a central role of this amino acid. All in vivo isolates that demonstrated two or three amino acid changes exhibited high-level resistance. Interestingly enough, all of these isolates showed the mutational change 481His-Asn, which is capable of conferring low-level resistance on its own, thereby indicating a two-step resistance mechanism in vivo to high-level resistance within these isolates. High-level resistance in vivo, however, was not demonstrated to occur through multiple mutations alone. The single amino acid substitution 468Gln-Lys also causes high-level resistance.
Key Molecule: DNA-directed RNA polymerase subunit beta (RPOB) [13]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Rifabutin
Molecule Alteration Missense mutation
p.A473T
Experimental Note Identified from the Human Clinical Data
In Vitro Model Staphylococcus aureus strain T109 1280
Staphylococcus aureus strain T112 1280
Staphylococcus aureus strain T113 1280
Staphylococcus aureus strain T115 1280
Staphylococcus aureus strain T118 1280
Staphylococcus aureus strain T124 1280
Staphylococcus aureus strain T161 1280
Staphylococcus aureus strain T166 1280
Staphylococcus aureus strain T20 1280
Staphylococcus aureus strain T211 1280
Staphylococcus aureus strain T212 1280
Staphylococcus aureus strain T23 1280
Staphylococcus aureus strain T236 1280
Staphylococcus aureus strain T23aa 1280
Staphylococcus aureus strain T23aac 1280
Staphylococcus aureus strain T23bb 1280
Staphylococcus aureus strain T248 1280
Staphylococcus aureus strain T249 1280
Staphylococcus aureus strain T25 1280
Staphylococcus aureus strain T250 1280
Staphylococcus aureus strain T262 1280
Staphylococcus aureus strain T264 1280
Staphylococcus aureus strain T295 1280
Staphylococcus aureus strain T296 1280
Staphylococcus aureus strain T297 1280
Staphylococcus aureus strain T36 1280
Staphylococcus aureus strain T38 1280
Staphylococcus aureus strain T382 1280
Staphylococcus aureus strain T38aa 1280
Staphylococcus aureus strain T38bb 1280
Staphylococcus aureus strain T397 1280
Staphylococcus aureus strain T398 1280
Staphylococcus aureus strain T399 1280
Staphylococcus aureus strain T4 1280
Staphylococcus aureus strain T400 1280
Staphylococcus aureus strain T401 1280
Staphylococcus aureus strain T402 1280
Staphylococcus aureus strain T403 1280
Staphylococcus aureus strain T404 1280
Staphylococcus aureus strain T46 1280
Staphylococcus aureus strain T59 1280
Staphylococcus aureus strain T66 1280
Experiment for
Molecule Alteration
DNA sequencing assay
Experiment for
Drug Resistance
Agar dilution method assay
Mechanism Description Twelve mutational changes at 10 positions were identified, with 473Ala-Thr representing a new mutation site. New amino acid substitutions, 465Gln-Arg, 466Leu-Ser, 468Gln-Lys, and 477Ala-Thr in cluster I and 527Ile-Met and 529Ser-Leu in cluster II, were described, thereby emphasizing the high variability of these amino acid positions. Codon 481 was mutated on 32 separate occasions, which indicates a central role of this amino acid. All in vivo isolates that demonstrated two or three amino acid changes exhibited high-level resistance. Interestingly enough, all of these isolates showed the mutational change 481His-Asn, which is capable of conferring low-level resistance on its own, thereby indicating a two-step resistance mechanism in vivo to high-level resistance within these isolates. High-level resistance in vivo, however, was not demonstrated to occur through multiple mutations alone. The single amino acid substitution 468Gln-Lys also causes high-level resistance.
Key Molecule: DNA-directed RNA polymerase subunit beta (RPOB) [13]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Rifabutin
Molecule Alteration Missense mutation
p.Q465R
Experimental Note Identified from the Human Clinical Data
In Vitro Model Staphylococcus aureus strain T109 1280
Staphylococcus aureus strain T112 1280
Staphylococcus aureus strain T113 1280
Staphylococcus aureus strain T115 1280
Staphylococcus aureus strain T118 1280
Staphylococcus aureus strain T124 1280
Staphylococcus aureus strain T161 1280
Staphylococcus aureus strain T166 1280
Staphylococcus aureus strain T20 1280
Staphylococcus aureus strain T211 1280
Staphylococcus aureus strain T212 1280
Staphylococcus aureus strain T23 1280
Staphylococcus aureus strain T236 1280
Staphylococcus aureus strain T23aa 1280
Staphylococcus aureus strain T23aac 1280
Staphylococcus aureus strain T23bb 1280
Staphylococcus aureus strain T248 1280
Staphylococcus aureus strain T249 1280
Staphylococcus aureus strain T25 1280
Staphylococcus aureus strain T250 1280
Staphylococcus aureus strain T262 1280
Staphylococcus aureus strain T264 1280
Staphylococcus aureus strain T295 1280
Staphylococcus aureus strain T296 1280
Staphylococcus aureus strain T297 1280
Staphylococcus aureus strain T36 1280
Staphylococcus aureus strain T38 1280
Staphylococcus aureus strain T382 1280
Staphylococcus aureus strain T38aa 1280
Staphylococcus aureus strain T38bb 1280
Staphylococcus aureus strain T397 1280
Staphylococcus aureus strain T398 1280
Staphylococcus aureus strain T399 1280
Staphylococcus aureus strain T4 1280
Staphylococcus aureus strain T400 1280
Staphylococcus aureus strain T401 1280
Staphylococcus aureus strain T402 1280
Staphylococcus aureus strain T403 1280
Staphylococcus aureus strain T404 1280
Staphylococcus aureus strain T46 1280
Staphylococcus aureus strain T59 1280
Staphylococcus aureus strain T66 1280
Experiment for
Molecule Alteration
DNA sequencing assay
Experiment for
Drug Resistance
Agar dilution method assay
Mechanism Description Twelve mutational changes at 10 positions were identified, with 473Ala-Thr representing a new mutation site. New amino acid substitutions, 465Gln-Arg, 466Leu-Ser, 468Gln-Lys, and 477Ala-Thr in cluster I and 527Ile-Met and 529Ser-Leu in cluster II, were described, thereby emphasizing the high variability of these amino acid positions. Codon 481 was mutated on 32 separate occasions, which indicates a central role of this amino acid. All in vivo isolates that demonstrated two or three amino acid changes exhibited high-level resistance. Interestingly enough, all of these isolates showed the mutational change 481His-Asn, which is capable of conferring low-level resistance on its own, thereby indicating a two-step resistance mechanism in vivo to high-level resistance within these isolates. High-level resistance in vivo, however, was not demonstrated to occur through multiple mutations alone. The single amino acid substitution 468Gln-Lys also causes high-level resistance.
Key Molecule: DNA-directed RNA polymerase subunit beta (RPOB) [13]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Rifabutin
Molecule Alteration Missense mutation
p.L466S
Experimental Note Identified from the Human Clinical Data
In Vitro Model Staphylococcus aureus strain T109 1280
Staphylococcus aureus strain T112 1280
Staphylococcus aureus strain T113 1280
Staphylococcus aureus strain T115 1280
Staphylococcus aureus strain T118 1280
Staphylococcus aureus strain T124 1280
Staphylococcus aureus strain T161 1280
Staphylococcus aureus strain T166 1280
Staphylococcus aureus strain T20 1280
Staphylococcus aureus strain T211 1280
Staphylococcus aureus strain T212 1280
Staphylococcus aureus strain T23 1280
Staphylococcus aureus strain T236 1280
Staphylococcus aureus strain T23aa 1280
Staphylococcus aureus strain T23aac 1280
Staphylococcus aureus strain T23bb 1280
Staphylococcus aureus strain T248 1280
Staphylococcus aureus strain T249 1280
Staphylococcus aureus strain T25 1280
Staphylococcus aureus strain T250 1280
Staphylococcus aureus strain T262 1280
Staphylococcus aureus strain T264 1280
Staphylococcus aureus strain T295 1280
Staphylococcus aureus strain T296 1280
Staphylococcus aureus strain T297 1280
Staphylococcus aureus strain T36 1280
Staphylococcus aureus strain T38 1280
Staphylococcus aureus strain T382 1280
Staphylococcus aureus strain T38aa 1280
Staphylococcus aureus strain T38bb 1280
Staphylococcus aureus strain T397 1280
Staphylococcus aureus strain T398 1280
Staphylococcus aureus strain T399 1280
Staphylococcus aureus strain T4 1280
Staphylococcus aureus strain T400 1280
Staphylococcus aureus strain T401 1280
Staphylococcus aureus strain T402 1280
Staphylococcus aureus strain T403 1280
Staphylococcus aureus strain T404 1280
Staphylococcus aureus strain T46 1280
Staphylococcus aureus strain T59 1280
Staphylococcus aureus strain T66 1280
Experiment for
Molecule Alteration
DNA sequencing assay
Experiment for
Drug Resistance
Agar dilution method assay
Mechanism Description Twelve mutational changes at 10 positions were identified, with 473Ala-Thr representing a new mutation site. New amino acid substitutions, 465Gln-Arg, 466Leu-Ser, 468Gln-Lys, and 477Ala-Thr in cluster I and 527Ile-Met and 529Ser-Leu in cluster II, were described, thereby emphasizing the high variability of these amino acid positions. Codon 481 was mutated on 32 separate occasions, which indicates a central role of this amino acid. All in vivo isolates that demonstrated two or three amino acid changes exhibited high-level resistance. Interestingly enough, all of these isolates showed the mutational change 481His-Asn, which is capable of conferring low-level resistance on its own, thereby indicating a two-step resistance mechanism in vivo to high-level resistance within these isolates. High-level resistance in vivo, however, was not demonstrated to occur through multiple mutations alone. The single amino acid substitution 468Gln-Lys also causes high-level resistance.
Key Molecule: DNA-directed RNA polymerase subunit beta (RPOB) [13]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Rifabutin
Molecule Alteration Missense mutation
p.Q468K
Experimental Note Identified from the Human Clinical Data
In Vitro Model Staphylococcus aureus strain T109 1280
Staphylococcus aureus strain T112 1280
Staphylococcus aureus strain T113 1280
Staphylococcus aureus strain T115 1280
Staphylococcus aureus strain T118 1280
Staphylococcus aureus strain T124 1280
Staphylococcus aureus strain T161 1280
Staphylococcus aureus strain T166 1280
Staphylococcus aureus strain T20 1280
Staphylococcus aureus strain T211 1280
Staphylococcus aureus strain T212 1280
Staphylococcus aureus strain T23 1280
Staphylococcus aureus strain T236 1280
Staphylococcus aureus strain T23aa 1280
Staphylococcus aureus strain T23aac 1280
Staphylococcus aureus strain T23bb 1280
Staphylococcus aureus strain T248 1280
Staphylococcus aureus strain T249 1280
Staphylococcus aureus strain T25 1280
Staphylococcus aureus strain T250 1280
Staphylococcus aureus strain T262 1280
Staphylococcus aureus strain T264 1280
Staphylococcus aureus strain T295 1280
Staphylococcus aureus strain T296 1280
Staphylococcus aureus strain T297 1280
Staphylococcus aureus strain T36 1280
Staphylococcus aureus strain T38 1280
Staphylococcus aureus strain T382 1280
Staphylococcus aureus strain T38aa 1280
Staphylococcus aureus strain T38bb 1280
Staphylococcus aureus strain T397 1280
Staphylococcus aureus strain T398 1280
Staphylococcus aureus strain T399 1280
Staphylococcus aureus strain T4 1280
Staphylococcus aureus strain T400 1280
Staphylococcus aureus strain T401 1280
Staphylococcus aureus strain T402 1280
Staphylococcus aureus strain T403 1280
Staphylococcus aureus strain T404 1280
Staphylococcus aureus strain T46 1280
Staphylococcus aureus strain T59 1280
Staphylococcus aureus strain T66 1280
Experiment for
Molecule Alteration
DNA sequencing assay
Experiment for
Drug Resistance
Agar dilution method assay
Mechanism Description Twelve mutational changes at 10 positions were identified, with 473Ala-Thr representing a new mutation site. New amino acid substitutions, 465Gln-Arg, 466Leu-Ser, 468Gln-Lys, and 477Ala-Thr in cluster I and 527Ile-Met and 529Ser-Leu in cluster II, were described, thereby emphasizing the high variability of these amino acid positions. Codon 481 was mutated on 32 separate occasions, which indicates a central role of this amino acid. All in vivo isolates that demonstrated two or three amino acid changes exhibited high-level resistance. Interestingly enough, all of these isolates showed the mutational change 481His-Asn, which is capable of conferring low-level resistance on its own, thereby indicating a two-step resistance mechanism in vivo to high-level resistance within these isolates. High-level resistance in vivo, however, was not demonstrated to occur through multiple mutations alone. The single amino acid substitution 468Gln-Lys also causes high-level resistance.
Key Molecule: DNA-directed RNA polymerase subunit beta (RPOB) [13]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Rifabutin
Molecule Alteration Missense mutation
p.D471Y
Experimental Note Identified from the Human Clinical Data
In Vitro Model Staphylococcus aureus strain T109 1280
Staphylococcus aureus strain T112 1280
Staphylococcus aureus strain T113 1280
Staphylococcus aureus strain T115 1280
Staphylococcus aureus strain T118 1280
Staphylococcus aureus strain T124 1280
Staphylococcus aureus strain T161 1280
Staphylococcus aureus strain T166 1280
Staphylococcus aureus strain T20 1280
Staphylococcus aureus strain T211 1280
Staphylococcus aureus strain T212 1280
Staphylococcus aureus strain T23 1280
Staphylococcus aureus strain T236 1280
Staphylococcus aureus strain T23aa 1280
Staphylococcus aureus strain T23aac 1280
Staphylococcus aureus strain T23bb 1280
Staphylococcus aureus strain T248 1280
Staphylococcus aureus strain T249 1280
Staphylococcus aureus strain T25 1280
Staphylococcus aureus strain T250 1280
Staphylococcus aureus strain T262 1280
Staphylococcus aureus strain T264 1280
Staphylococcus aureus strain T295 1280
Staphylococcus aureus strain T296 1280
Staphylococcus aureus strain T297 1280
Staphylococcus aureus strain T36 1280
Staphylococcus aureus strain T38 1280
Staphylococcus aureus strain T382 1280
Staphylococcus aureus strain T38aa 1280
Staphylococcus aureus strain T38bb 1280
Staphylococcus aureus strain T397 1280
Staphylococcus aureus strain T398 1280
Staphylococcus aureus strain T399 1280
Staphylococcus aureus strain T4 1280
Staphylococcus aureus strain T400 1280
Staphylococcus aureus strain T401 1280
Staphylococcus aureus strain T402 1280
Staphylococcus aureus strain T403 1280
Staphylococcus aureus strain T404 1280
Staphylococcus aureus strain T46 1280
Staphylococcus aureus strain T59 1280
Staphylococcus aureus strain T66 1280
Experiment for
Molecule Alteration
DNA sequencing assay
Experiment for
Drug Resistance
Agar dilution method assay
Mechanism Description Twelve mutational changes at 10 positions were identified, with 473Ala-Thr representing a new mutation site. New amino acid substitutions, 465Gln-Arg, 466Leu-Ser, 468Gln-Lys, and 477Ala-Thr in cluster I and 527Ile-Met and 529Ser-Leu in cluster II, were described, thereby emphasizing the high variability of these amino acid positions. Codon 481 was mutated on 32 separate occasions, which indicates a central role of this amino acid. All in vivo isolates that demonstrated two or three amino acid changes exhibited high-level resistance. Interestingly enough, all of these isolates showed the mutational change 481His-Asn, which is capable of conferring low-level resistance on its own, thereby indicating a two-step resistance mechanism in vivo to high-level resistance within these isolates. High-level resistance in vivo, however, was not demonstrated to occur through multiple mutations alone. The single amino acid substitution 468Gln-Lys also causes high-level resistance.
Key Molecule: DNA-directed RNA polymerase subunit beta (RPOB) [13]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Rifabutin
Molecule Alteration Missense mutation
p.A477T
Experimental Note Identified from the Human Clinical Data
In Vitro Model Staphylococcus aureus strain T109 1280
Staphylococcus aureus strain T112 1280
Staphylococcus aureus strain T113 1280
Staphylococcus aureus strain T115 1280
Staphylococcus aureus strain T118 1280
Staphylococcus aureus strain T124 1280
Staphylococcus aureus strain T161 1280
Staphylococcus aureus strain T166 1280
Staphylococcus aureus strain T20 1280
Staphylococcus aureus strain T211 1280
Staphylococcus aureus strain T212 1280
Staphylococcus aureus strain T23 1280
Staphylococcus aureus strain T236 1280
Staphylococcus aureus strain T23aa 1280
Staphylococcus aureus strain T23aac 1280
Staphylococcus aureus strain T23bb 1280
Staphylococcus aureus strain T248 1280
Staphylococcus aureus strain T249 1280
Staphylococcus aureus strain T25 1280
Staphylococcus aureus strain T250 1280
Staphylococcus aureus strain T262 1280
Staphylococcus aureus strain T264 1280
Staphylococcus aureus strain T295 1280
Staphylococcus aureus strain T296 1280
Staphylococcus aureus strain T297 1280
Staphylococcus aureus strain T36 1280
Staphylococcus aureus strain T38 1280
Staphylococcus aureus strain T382 1280
Staphylococcus aureus strain T38aa 1280
Staphylococcus aureus strain T38bb 1280
Staphylococcus aureus strain T397 1280
Staphylococcus aureus strain T398 1280
Staphylococcus aureus strain T399 1280
Staphylococcus aureus strain T4 1280
Staphylococcus aureus strain T400 1280
Staphylococcus aureus strain T401 1280
Staphylococcus aureus strain T402 1280
Staphylococcus aureus strain T403 1280
Staphylococcus aureus strain T404 1280
Staphylococcus aureus strain T46 1280
Staphylococcus aureus strain T59 1280
Staphylococcus aureus strain T66 1280
Experiment for
Molecule Alteration
DNA sequencing assay
Experiment for
Drug Resistance
Agar dilution method assay
Mechanism Description Twelve mutational changes at 10 positions were identified, with 473Ala-Thr representing a new mutation site. New amino acid substitutions, 465Gln-Arg, 466Leu-Ser, 468Gln-Lys, and 477Ala-Thr in cluster I and 527Ile-Met and 529Ser-Leu in cluster II, were described, thereby emphasizing the high variability of these amino acid positions. Codon 481 was mutated on 32 separate occasions, which indicates a central role of this amino acid. All in vivo isolates that demonstrated two or three amino acid changes exhibited high-level resistance. Interestingly enough, all of these isolates showed the mutational change 481His-Asn, which is capable of conferring low-level resistance on its own, thereby indicating a two-step resistance mechanism in vivo to high-level resistance within these isolates. High-level resistance in vivo, however, was not demonstrated to occur through multiple mutations alone. The single amino acid substitution 468Gln-Lys also causes high-level resistance.
Key Molecule: DNA-directed RNA polymerase subunit beta (RPOB) [13]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Rifabutin
Molecule Alteration Missense mutation
p.I527M
Experimental Note Identified from the Human Clinical Data
In Vitro Model Staphylococcus aureus strain T109 1280
Staphylococcus aureus strain T112 1280
Staphylococcus aureus strain T113 1280
Staphylococcus aureus strain T115 1280
Staphylococcus aureus strain T118 1280
Staphylococcus aureus strain T124 1280
Staphylococcus aureus strain T161 1280
Staphylococcus aureus strain T166 1280
Staphylococcus aureus strain T20 1280
Staphylococcus aureus strain T211 1280
Staphylococcus aureus strain T212 1280
Staphylococcus aureus strain T23 1280
Staphylococcus aureus strain T236 1280
Staphylococcus aureus strain T23aa 1280
Staphylococcus aureus strain T23aac 1280
Staphylococcus aureus strain T23bb 1280
Staphylococcus aureus strain T248 1280
Staphylococcus aureus strain T249 1280
Staphylococcus aureus strain T25 1280
Staphylococcus aureus strain T250 1280
Staphylococcus aureus strain T262 1280
Staphylococcus aureus strain T264 1280
Staphylococcus aureus strain T295 1280
Staphylococcus aureus strain T296 1280
Staphylococcus aureus strain T297 1280
Staphylococcus aureus strain T36 1280
Staphylococcus aureus strain T38 1280
Staphylococcus aureus strain T382 1280
Staphylococcus aureus strain T38aa 1280
Staphylococcus aureus strain T38bb 1280
Staphylococcus aureus strain T397 1280
Staphylococcus aureus strain T398 1280
Staphylococcus aureus strain T399 1280
Staphylococcus aureus strain T4 1280
Staphylococcus aureus strain T400 1280
Staphylococcus aureus strain T401 1280
Staphylococcus aureus strain T402 1280
Staphylococcus aureus strain T403 1280
Staphylococcus aureus strain T404 1280
Staphylococcus aureus strain T46 1280
Staphylococcus aureus strain T59 1280
Staphylococcus aureus strain T66 1280
Experiment for
Molecule Alteration
DNA sequencing assay
Experiment for
Drug Resistance
Agar dilution method assay
Mechanism Description Twelve mutational changes at 10 positions were identified, with 473Ala-Thr representing a new mutation site. New amino acid substitutions, 465Gln-Arg, 466Leu-Ser, 468Gln-Lys, and 477Ala-Thr in cluster I and 527Ile-Met and 529Ser-Leu in cluster II, were described, thereby emphasizing the high variability of these amino acid positions. Codon 481 was mutated on 32 separate occasions, which indicates a central role of this amino acid. All in vivo isolates that demonstrated two or three amino acid changes exhibited high-level resistance. Interestingly enough, all of these isolates showed the mutational change 481His-Asn, which is capable of conferring low-level resistance on its own, thereby indicating a two-step resistance mechanism in vivo to high-level resistance within these isolates. High-level resistance in vivo, however, was not demonstrated to occur through multiple mutations alone. The single amino acid substitution 468Gln-Lys also causes high-level resistance.
Key Molecule: DNA-directed RNA polymerase subunit beta (RPOB) [13]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Rifabutin
Molecule Alteration Missense mutation
p.S529L
Experimental Note Identified from the Human Clinical Data
In Vitro Model Staphylococcus aureus strain T109 1280
Staphylococcus aureus strain T112 1280
Staphylococcus aureus strain T113 1280
Staphylococcus aureus strain T115 1280
Staphylococcus aureus strain T118 1280
Staphylococcus aureus strain T124 1280
Staphylococcus aureus strain T161 1280
Staphylococcus aureus strain T166 1280
Staphylococcus aureus strain T20 1280
Staphylococcus aureus strain T211 1280
Staphylococcus aureus strain T212 1280
Staphylococcus aureus strain T23 1280
Staphylococcus aureus strain T236 1280
Staphylococcus aureus strain T23aa 1280
Staphylococcus aureus strain T23aac 1280
Staphylococcus aureus strain T23bb 1280
Staphylococcus aureus strain T248 1280
Staphylococcus aureus strain T249 1280
Staphylococcus aureus strain T25 1280
Staphylococcus aureus strain T250 1280
Staphylococcus aureus strain T262 1280
Staphylococcus aureus strain T264 1280
Staphylococcus aureus strain T295 1280
Staphylococcus aureus strain T296 1280
Staphylococcus aureus strain T297 1280
Staphylococcus aureus strain T36 1280
Staphylococcus aureus strain T38 1280
Staphylococcus aureus strain T382 1280
Staphylococcus aureus strain T38aa 1280
Staphylococcus aureus strain T38bb 1280
Staphylococcus aureus strain T397 1280
Staphylococcus aureus strain T398 1280
Staphylococcus aureus strain T399 1280
Staphylococcus aureus strain T4 1280
Staphylococcus aureus strain T400 1280
Staphylococcus aureus strain T401 1280
Staphylococcus aureus strain T402 1280
Staphylococcus aureus strain T403 1280
Staphylococcus aureus strain T404 1280
Staphylococcus aureus strain T46 1280
Staphylococcus aureus strain T59 1280
Staphylococcus aureus strain T66 1280
Experiment for
Molecule Alteration
DNA sequencing assay
Experiment for
Drug Resistance
Agar dilution method assay
Mechanism Description Twelve mutational changes at 10 positions were identified, with 473Ala-Thr representing a new mutation site. New amino acid substitutions, 465Gln-Arg, 466Leu-Ser, 468Gln-Lys, and 477Ala-Thr in cluster I and 527Ile-Met and 529Ser-Leu in cluster II, were described, thereby emphasizing the high variability of these amino acid positions. Codon 481 was mutated on 32 separate occasions, which indicates a central role of this amino acid. All in vivo isolates that demonstrated two or three amino acid changes exhibited high-level resistance. Interestingly enough, all of these isolates showed the mutational change 481His-Asn, which is capable of conferring low-level resistance on its own, thereby indicating a two-step resistance mechanism in vivo to high-level resistance within these isolates. High-level resistance in vivo, however, was not demonstrated to occur through multiple mutations alone. The single amino acid substitution 468Gln-Lys also causes high-level resistance.
Key Molecule: DNA-directed RNA polymerase subunit beta (RPOB) [13]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Rifabutin
Molecule Alteration Missense mutation
p.H481N+p.L466S
Experimental Note Identified from the Human Clinical Data
In Vitro Model Staphylococcus aureus strain T109 1280
Staphylococcus aureus strain T112 1280
Staphylococcus aureus strain T113 1280
Staphylococcus aureus strain T115 1280
Staphylococcus aureus strain T118 1280
Staphylococcus aureus strain T124 1280
Staphylococcus aureus strain T161 1280
Staphylococcus aureus strain T166 1280
Staphylococcus aureus strain T20 1280
Staphylococcus aureus strain T211 1280
Staphylococcus aureus strain T212 1280
Staphylococcus aureus strain T23 1280
Staphylococcus aureus strain T236 1280
Staphylococcus aureus strain T23aa 1280
Staphylococcus aureus strain T23aac 1280
Staphylococcus aureus strain T23bb 1280
Staphylococcus aureus strain T248 1280
Staphylococcus aureus strain T249 1280
Staphylococcus aureus strain T25 1280
Staphylococcus aureus strain T250 1280
Staphylococcus aureus strain T262 1280
Staphylococcus aureus strain T264 1280
Staphylococcus aureus strain T295 1280
Staphylococcus aureus strain T296 1280
Staphylococcus aureus strain T297 1280
Staphylococcus aureus strain T36 1280
Staphylococcus aureus strain T38 1280
Staphylococcus aureus strain T382 1280
Staphylococcus aureus strain T38aa 1280
Staphylococcus aureus strain T38bb 1280
Staphylococcus aureus strain T397 1280
Staphylococcus aureus strain T398 1280
Staphylococcus aureus strain T399 1280
Staphylococcus aureus strain T4 1280
Staphylococcus aureus strain T400 1280
Staphylococcus aureus strain T401 1280
Staphylococcus aureus strain T402 1280
Staphylococcus aureus strain T403 1280
Staphylococcus aureus strain T404 1280
Staphylococcus aureus strain T46 1280
Staphylococcus aureus strain T59 1280
Staphylococcus aureus strain T66 1280
Experiment for
Molecule Alteration
DNA sequencing assay
Experiment for
Drug Resistance
Agar dilution method assay
Mechanism Description Twelve mutational changes at 10 positions were identified, with 473Ala-Thr representing a new mutation site. New amino acid substitutions, 465Gln-Arg, 466Leu-Ser, 468Gln-Lys, and 477Ala-Thr in cluster I and 527Ile-Met and 529Ser-Leu in cluster II, were described, thereby emphasizing the high variability of these amino acid positions. Codon 481 was mutated on 32 separate occasions, which indicates a central role of this amino acid. All in vivo isolates that demonstrated two or three amino acid changes exhibited high-level resistance. Interestingly enough, all of these isolates showed the mutational change 481His-Asn, which is capable of conferring low-level resistance on its own, thereby indicating a two-step resistance mechanism in vivo to high-level resistance within these isolates. High-level resistance in vivo, however, was not demonstrated to occur through multiple mutations alone. The single amino acid substitution 468Gln-Lys also causes high-level resistance.
Key Molecule: DNA-directed RNA polymerase subunit beta (RPOB) [13]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Rifabutin
Molecule Alteration Missense mutation
p.H481N+p.S529L
Experimental Note Identified from the Human Clinical Data
In Vitro Model Staphylococcus aureus strain T109 1280
Staphylococcus aureus strain T112 1280
Staphylococcus aureus strain T113 1280
Staphylococcus aureus strain T115 1280
Staphylococcus aureus strain T118 1280
Staphylococcus aureus strain T124 1280
Staphylococcus aureus strain T161 1280
Staphylococcus aureus strain T166 1280
Staphylococcus aureus strain T20 1280
Staphylococcus aureus strain T211 1280
Staphylococcus aureus strain T212 1280
Staphylococcus aureus strain T23 1280
Staphylococcus aureus strain T236 1280
Staphylococcus aureus strain T23aa 1280
Staphylococcus aureus strain T23aac 1280
Staphylococcus aureus strain T23bb 1280
Staphylococcus aureus strain T248 1280
Staphylococcus aureus strain T249 1280
Staphylococcus aureus strain T25 1280
Staphylococcus aureus strain T250 1280
Staphylococcus aureus strain T262 1280
Staphylococcus aureus strain T264 1280
Staphylococcus aureus strain T295 1280
Staphylococcus aureus strain T296 1280
Staphylococcus aureus strain T297 1280
Staphylococcus aureus strain T36 1280
Staphylococcus aureus strain T38 1280
Staphylococcus aureus strain T382 1280
Staphylococcus aureus strain T38aa 1280
Staphylococcus aureus strain T38bb 1280
Staphylococcus aureus strain T397 1280
Staphylococcus aureus strain T398 1280
Staphylococcus aureus strain T399 1280
Staphylococcus aureus strain T4 1280
Staphylococcus aureus strain T400 1280
Staphylococcus aureus strain T401 1280
Staphylococcus aureus strain T402 1280
Staphylococcus aureus strain T403 1280
Staphylococcus aureus strain T404 1280
Staphylococcus aureus strain T46 1280
Staphylococcus aureus strain T59 1280
Staphylococcus aureus strain T66 1280
Experiment for
Molecule Alteration
DNA sequencing assay
Experiment for
Drug Resistance
Agar dilution method assay
Mechanism Description Twelve mutational changes at 10 positions were identified, with 473Ala-Thr representing a new mutation site. New amino acid substitutions, 465Gln-Arg, 466Leu-Ser, 468Gln-Lys, and 477Ala-Thr in cluster I and 527Ile-Met and 529Ser-Leu in cluster II, were described, thereby emphasizing the high variability of these amino acid positions. Codon 481 was mutated on 32 separate occasions, which indicates a central role of this amino acid. All in vivo isolates that demonstrated two or three amino acid changes exhibited high-level resistance. Interestingly enough, all of these isolates showed the mutational change 481His-Asn, which is capable of conferring low-level resistance on its own, thereby indicating a two-step resistance mechanism in vivo to high-level resistance within these isolates. High-level resistance in vivo, however, was not demonstrated to occur through multiple mutations alone. The single amino acid substitution 468Gln-Lys also causes high-level resistance.
Key Molecule: DNA-directed RNA polymerase subunit beta (RPOB) [13]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Rifabutin
Molecule Alteration Missense mutation
p.H481N+p.I527M
Experimental Note Identified from the Human Clinical Data
In Vitro Model Staphylococcus aureus strain T109 1280
Staphylococcus aureus strain T112 1280
Staphylococcus aureus strain T113 1280
Staphylococcus aureus strain T115 1280
Staphylococcus aureus strain T118 1280
Staphylococcus aureus strain T124 1280
Staphylococcus aureus strain T161 1280
Staphylococcus aureus strain T166 1280
Staphylococcus aureus strain T20 1280
Staphylococcus aureus strain T211 1280
Staphylococcus aureus strain T212 1280
Staphylococcus aureus strain T23 1280
Staphylococcus aureus strain T236 1280
Staphylococcus aureus strain T23aa 1280
Staphylococcus aureus strain T23aac 1280
Staphylococcus aureus strain T23bb 1280
Staphylococcus aureus strain T248 1280
Staphylococcus aureus strain T249 1280
Staphylococcus aureus strain T25 1280
Staphylococcus aureus strain T250 1280
Staphylococcus aureus strain T262 1280
Staphylococcus aureus strain T264 1280
Staphylococcus aureus strain T295 1280
Staphylococcus aureus strain T296 1280
Staphylococcus aureus strain T297 1280
Staphylococcus aureus strain T36 1280
Staphylococcus aureus strain T38 1280
Staphylococcus aureus strain T382 1280
Staphylococcus aureus strain T38aa 1280
Staphylococcus aureus strain T38bb 1280
Staphylococcus aureus strain T397 1280
Staphylococcus aureus strain T398 1280
Staphylococcus aureus strain T399 1280
Staphylococcus aureus strain T4 1280
Staphylococcus aureus strain T400 1280
Staphylococcus aureus strain T401 1280
Staphylococcus aureus strain T402 1280
Staphylococcus aureus strain T403 1280
Staphylococcus aureus strain T404 1280
Staphylococcus aureus strain T46 1280
Staphylococcus aureus strain T59 1280
Staphylococcus aureus strain T66 1280
Experiment for
Molecule Alteration
DNA sequencing assay
Experiment for
Drug Resistance
Agar dilution method assay
Mechanism Description Twelve mutational changes at 10 positions were identified, with 473Ala-Thr representing a new mutation site. New amino acid substitutions, 465Gln-Arg, 466Leu-Ser, 468Gln-Lys, and 477Ala-Thr in cluster I and 527Ile-Met and 529Ser-Leu in cluster II, were described, thereby emphasizing the high variability of these amino acid positions. Codon 481 was mutated on 32 separate occasions, which indicates a central role of this amino acid. All in vivo isolates that demonstrated two or three amino acid changes exhibited high-level resistance. Interestingly enough, all of these isolates showed the mutational change 481His-Asn, which is capable of conferring low-level resistance on its own, thereby indicating a two-step resistance mechanism in vivo to high-level resistance within these isolates. High-level resistance in vivo, however, was not demonstrated to occur through multiple mutations alone. The single amino acid substitution 468Gln-Lys also causes high-level resistance.
Key Molecule: DNA-directed RNA polymerase subunit beta (RPOB) [13]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Rifabutin
Molecule Alteration Missense mutation
p.H481N+p.S529L+p.Q465R
Experimental Note Identified from the Human Clinical Data
In Vitro Model Staphylococcus aureus strain T109 1280
Staphylococcus aureus strain T112 1280
Staphylococcus aureus strain T113 1280
Staphylococcus aureus strain T115 1280
Staphylococcus aureus strain T118 1280
Staphylococcus aureus strain T124 1280
Staphylococcus aureus strain T161 1280
Staphylococcus aureus strain T166 1280
Staphylococcus aureus strain T20 1280
Staphylococcus aureus strain T211 1280
Staphylococcus aureus strain T212 1280
Staphylococcus aureus strain T23 1280
Staphylococcus aureus strain T236 1280
Staphylococcus aureus strain T23aa 1280
Staphylococcus aureus strain T23aac 1280
Staphylococcus aureus strain T23bb 1280
Staphylococcus aureus strain T248 1280
Staphylococcus aureus strain T249 1280
Staphylococcus aureus strain T25 1280
Staphylococcus aureus strain T250 1280
Staphylococcus aureus strain T262 1280
Staphylococcus aureus strain T264 1280
Staphylococcus aureus strain T295 1280
Staphylococcus aureus strain T296 1280
Staphylococcus aureus strain T297 1280
Staphylococcus aureus strain T36 1280
Staphylococcus aureus strain T38 1280
Staphylococcus aureus strain T382 1280
Staphylococcus aureus strain T38aa 1280
Staphylococcus aureus strain T38bb 1280
Staphylococcus aureus strain T397 1280
Staphylococcus aureus strain T398 1280
Staphylococcus aureus strain T399 1280
Staphylococcus aureus strain T4 1280
Staphylococcus aureus strain T400 1280
Staphylococcus aureus strain T401 1280
Staphylococcus aureus strain T402 1280
Staphylococcus aureus strain T403 1280
Staphylococcus aureus strain T404 1280
Staphylococcus aureus strain T46 1280
Staphylococcus aureus strain T59 1280
Staphylococcus aureus strain T66 1280
Experiment for
Molecule Alteration
DNA sequencing assay
Experiment for
Drug Resistance
Agar dilution method assay
Mechanism Description Twelve mutational changes at 10 positions were identified, with 473Ala-Thr representing a new mutation site. New amino acid substitutions, 465Gln-Arg, 466Leu-Ser, 468Gln-Lys, and 477Ala-Thr in cluster I and 527Ile-Met and 529Ser-Leu in cluster II, were described, thereby emphasizing the high variability of these amino acid positions. Codon 481 was mutated on 32 separate occasions, which indicates a central role of this amino acid. All in vivo isolates that demonstrated two or three amino acid changes exhibited high-level resistance. Interestingly enough, all of these isolates showed the mutational change 481His-Asn, which is capable of conferring low-level resistance on its own, thereby indicating a two-step resistance mechanism in vivo to high-level resistance within these isolates. High-level resistance in vivo, however, was not demonstrated to occur through multiple mutations alone. The single amino acid substitution 468Gln-Lys also causes high-level resistance.
Key Molecule: DNA-directed RNA polymerase subunit beta (RPOB) [13]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Rifabutin
Molecule Alteration Missense mutation
p.H481N+p.A473T+p.A477T
Experimental Note Identified from the Human Clinical Data
In Vitro Model Staphylococcus aureus strain T109 1280
Staphylococcus aureus strain T112 1280
Staphylococcus aureus strain T113 1280
Staphylococcus aureus strain T115 1280
Staphylococcus aureus strain T118 1280
Staphylococcus aureus strain T124 1280
Staphylococcus aureus strain T161 1280
Staphylococcus aureus strain T166 1280
Staphylococcus aureus strain T20 1280
Staphylococcus aureus strain T211 1280
Staphylococcus aureus strain T212 1280
Staphylococcus aureus strain T23 1280
Staphylococcus aureus strain T236 1280
Staphylococcus aureus strain T23aa 1280
Staphylococcus aureus strain T23aac 1280
Staphylococcus aureus strain T23bb 1280
Staphylococcus aureus strain T248 1280
Staphylococcus aureus strain T249 1280
Staphylococcus aureus strain T25 1280
Staphylococcus aureus strain T250 1280
Staphylococcus aureus strain T262 1280
Staphylococcus aureus strain T264 1280
Staphylococcus aureus strain T295 1280
Staphylococcus aureus strain T296 1280
Staphylococcus aureus strain T297 1280
Staphylococcus aureus strain T36 1280
Staphylococcus aureus strain T38 1280
Staphylococcus aureus strain T382 1280
Staphylococcus aureus strain T38aa 1280
Staphylococcus aureus strain T38bb 1280
Staphylococcus aureus strain T397 1280
Staphylococcus aureus strain T398 1280
Staphylococcus aureus strain T399 1280
Staphylococcus aureus strain T4 1280
Staphylococcus aureus strain T400 1280
Staphylococcus aureus strain T401 1280
Staphylococcus aureus strain T402 1280
Staphylococcus aureus strain T403 1280
Staphylococcus aureus strain T404 1280
Staphylococcus aureus strain T46 1280
Staphylococcus aureus strain T59 1280
Staphylococcus aureus strain T66 1280
Experiment for
Molecule Alteration
DNA sequencing assay
Experiment for
Drug Resistance
Agar dilution method assay
Mechanism Description Twelve mutational changes at 10 positions were identified, with 473Ala-Thr representing a new mutation site. New amino acid substitutions, 465Gln-Arg, 466Leu-Ser, 468Gln-Lys, and 477Ala-Thr in cluster I and 527Ile-Met and 529Ser-Leu in cluster II, were described, thereby emphasizing the high variability of these amino acid positions. Codon 481 was mutated on 32 separate occasions, which indicates a central role of this amino acid. All in vivo isolates that demonstrated two or three amino acid changes exhibited high-level resistance. Interestingly enough, all of these isolates showed the mutational change 481His-Asn, which is capable of conferring low-level resistance on its own, thereby indicating a two-step resistance mechanism in vivo to high-level resistance within these isolates. High-level resistance in vivo, however, was not demonstrated to occur through multiple mutations alone. The single amino acid substitution 468Gln-Lys also causes high-level resistance.
Key Molecule: DNA-directed RNA polymerase subunit beta (RPOB) [13]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Rifabutin
Molecule Alteration Missense mutation
p.D471Y+p.S486L
Experimental Note Identified from the Human Clinical Data
In Vitro Model Staphylococcus aureus strain T109 1280
Staphylococcus aureus strain T112 1280
Staphylococcus aureus strain T113 1280
Staphylococcus aureus strain T115 1280
Staphylococcus aureus strain T118 1280
Staphylococcus aureus strain T124 1280
Staphylococcus aureus strain T161 1280
Staphylococcus aureus strain T166 1280
Staphylococcus aureus strain T20 1280
Staphylococcus aureus strain T211 1280
Staphylococcus aureus strain T212 1280
Staphylococcus aureus strain T23 1280
Staphylococcus aureus strain T236 1280
Staphylococcus aureus strain T23aa 1280
Staphylococcus aureus strain T23aac 1280
Staphylococcus aureus strain T23bb 1280
Staphylococcus aureus strain T248 1280
Staphylococcus aureus strain T249 1280
Staphylococcus aureus strain T25 1280
Staphylococcus aureus strain T250 1280
Staphylococcus aureus strain T262 1280
Staphylococcus aureus strain T264 1280
Staphylococcus aureus strain T295 1280
Staphylococcus aureus strain T296 1280
Staphylococcus aureus strain T297 1280
Staphylococcus aureus strain T36 1280
Staphylococcus aureus strain T38 1280
Staphylococcus aureus strain T382 1280
Staphylococcus aureus strain T38aa 1280
Staphylococcus aureus strain T38bb 1280
Staphylococcus aureus strain T397 1280
Staphylococcus aureus strain T398 1280
Staphylococcus aureus strain T399 1280
Staphylococcus aureus strain T4 1280
Staphylococcus aureus strain T400 1280
Staphylococcus aureus strain T401 1280
Staphylococcus aureus strain T402 1280
Staphylococcus aureus strain T403 1280
Staphylococcus aureus strain T404 1280
Staphylococcus aureus strain T46 1280
Staphylococcus aureus strain T59 1280
Staphylococcus aureus strain T66 1280
Experiment for
Molecule Alteration
DNA sequencing assay
Experiment for
Drug Resistance
Agar dilution method assay
Mechanism Description Twelve mutational changes at 10 positions were identified, with 473Ala-Thr representing a new mutation site. New amino acid substitutions, 465Gln-Arg, 466Leu-Ser, 468Gln-Lys, and 477Ala-Thr in cluster I and 527Ile-Met and 529Ser-Leu in cluster II, were described, thereby emphasizing the high variability of these amino acid positions. Codon 481 was mutated on 32 separate occasions, which indicates a central role of this amino acid. All in vivo isolates that demonstrated two or three amino acid changes exhibited high-level resistance. Interestingly enough, all of these isolates showed the mutational change 481His-Asn, which is capable of conferring low-level resistance on its own, thereby indicating a two-step resistance mechanism in vivo to high-level resistance within these isolates. High-level resistance in vivo, however, was not demonstrated to occur through multiple mutations alone. The single amino acid substitution 468Gln-Lys also causes high-level resistance.
Rifampin
Click to Show/Hide
Drug Resistance Data Categorized by Their Corresponding Mechanisms
  Epigenetic Alteration of DNA, RNA or Protein (EADR) Click to Show/Hide
Key Molecule: DNA-directed RNA polymerase subunit beta (RPOB) [13]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Rifampin
Molecule Alteration Missense mutation
p.H481N
Experimental Note Identified from the Human Clinical Data
In Vitro Model Staphylococcus aureus strain T109 1280
Staphylococcus aureus strain T112 1280
Staphylococcus aureus strain T113 1280
Staphylococcus aureus strain T115 1280
Staphylococcus aureus strain T118 1280
Staphylococcus aureus strain T124 1280
Staphylococcus aureus strain T161 1280
Staphylococcus aureus strain T166 1280
Staphylococcus aureus strain T20 1280
Staphylococcus aureus strain T211 1280
Staphylococcus aureus strain T212 1280
Staphylococcus aureus strain T23 1280
Staphylococcus aureus strain T236 1280
Staphylococcus aureus strain T23aa 1280
Staphylococcus aureus strain T23aac 1280
Staphylococcus aureus strain T23bb 1280
Staphylococcus aureus strain T248 1280
Staphylococcus aureus strain T249 1280
Staphylococcus aureus strain T25 1280
Staphylococcus aureus strain T250 1280
Staphylococcus aureus strain T262 1280
Staphylococcus aureus strain T264 1280
Staphylococcus aureus strain T295 1280
Staphylococcus aureus strain T296 1280
Staphylococcus aureus strain T297 1280
Staphylococcus aureus strain T36 1280
Staphylococcus aureus strain T38 1280
Staphylococcus aureus strain T382 1280
Staphylococcus aureus strain T38aa 1280
Staphylococcus aureus strain T38bb 1280
Staphylococcus aureus strain T397 1280
Staphylococcus aureus strain T398 1280
Staphylococcus aureus strain T399 1280
Staphylococcus aureus strain T4 1280
Staphylococcus aureus strain T400 1280
Staphylococcus aureus strain T401 1280
Staphylococcus aureus strain T402 1280
Staphylococcus aureus strain T403 1280
Staphylococcus aureus strain T404 1280
Staphylococcus aureus strain T46 1280
Staphylococcus aureus strain T59 1280
Staphylococcus aureus strain T66 1280
Experiment for
Molecule Alteration
DNA sequencing assay
Experiment for
Drug Resistance
Agar dilution method assay
Mechanism Description Twelve mutational changes at 10 positions were identified, with 473Ala-Thr representing a new mutation site. New amino acid substitutions, 465Gln-Arg, 466Leu-Ser, 468Gln-Lys, and 477Ala-Thr in cluster I and 527Ile-Met and 529Ser-Leu in cluster II, were described, thereby emphasizing the high variability of these amino acid positions. Codon 481 was mutated on 32 separate occasions, which indicates a central role of this amino acid. All in vivo isolates that demonstrated two or three amino acid changes exhibited high-level resistance. Interestingly enough, all of these isolates showed the mutational change 481His-Asn, which is capable of conferring low-level resistance on its own, thereby indicating a two-step resistance mechanism in vivo to high-level resistance within these isolates. High-level resistance in vivo, however, was not demonstrated to occur through multiple mutations alone. The single amino acid substitution 468Gln-Lys also causes high-level resistance.
Key Molecule: DNA-directed RNA polymerase subunit beta (RPOB) [13]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Rifampin
Molecule Alteration Missense mutation
p.A473T
Experimental Note Identified from the Human Clinical Data
In Vitro Model Staphylococcus aureus strain T109 1280
Staphylococcus aureus strain T112 1280
Staphylococcus aureus strain T113 1280
Staphylococcus aureus strain T115 1280
Staphylococcus aureus strain T118 1280
Staphylococcus aureus strain T124 1280
Staphylococcus aureus strain T161 1280
Staphylococcus aureus strain T166 1280
Staphylococcus aureus strain T20 1280
Staphylococcus aureus strain T211 1280
Staphylococcus aureus strain T212 1280
Staphylococcus aureus strain T23 1280
Staphylococcus aureus strain T236 1280
Staphylococcus aureus strain T23aa 1280
Staphylococcus aureus strain T23aac 1280
Staphylococcus aureus strain T23bb 1280
Staphylococcus aureus strain T248 1280
Staphylococcus aureus strain T249 1280
Staphylococcus aureus strain T25 1280
Staphylococcus aureus strain T250 1280
Staphylococcus aureus strain T262 1280
Staphylococcus aureus strain T264 1280
Staphylococcus aureus strain T295 1280
Staphylococcus aureus strain T296 1280
Staphylococcus aureus strain T297 1280
Staphylococcus aureus strain T36 1280
Staphylococcus aureus strain T38 1280
Staphylococcus aureus strain T382 1280
Staphylococcus aureus strain T38aa 1280
Staphylococcus aureus strain T38bb 1280
Staphylococcus aureus strain T397 1280
Staphylococcus aureus strain T398 1280
Staphylococcus aureus strain T399 1280
Staphylococcus aureus strain T4 1280
Staphylococcus aureus strain T400 1280
Staphylococcus aureus strain T401 1280
Staphylococcus aureus strain T402 1280
Staphylococcus aureus strain T403 1280
Staphylococcus aureus strain T404 1280
Staphylococcus aureus strain T46 1280
Staphylococcus aureus strain T59 1280
Staphylococcus aureus strain T66 1280
Experiment for
Molecule Alteration
DNA sequencing assay
Experiment for
Drug Resistance
Agar dilution method assay
Mechanism Description Twelve mutational changes at 10 positions were identified, with 473Ala-Thr representing a new mutation site. New amino acid substitutions, 465Gln-Arg, 466Leu-Ser, 468Gln-Lys, and 477Ala-Thr in cluster I and 527Ile-Met and 529Ser-Leu in cluster II, were described, thereby emphasizing the high variability of these amino acid positions. Codon 481 was mutated on 32 separate occasions, which indicates a central role of this amino acid. All in vivo isolates that demonstrated two or three amino acid changes exhibited high-level resistance. Interestingly enough, all of these isolates showed the mutational change 481His-Asn, which is capable of conferring low-level resistance on its own, thereby indicating a two-step resistance mechanism in vivo to high-level resistance within these isolates. High-level resistance in vivo, however, was not demonstrated to occur through multiple mutations alone. The single amino acid substitution 468Gln-Lys also causes high-level resistance.
Key Molecule: DNA-directed RNA polymerase subunit beta (RPOB) [13]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Rifampin
Molecule Alteration Missense mutation
p.Q465R
Experimental Note Identified from the Human Clinical Data
In Vitro Model Staphylococcus aureus strain T109 1280
Staphylococcus aureus strain T112 1280
Staphylococcus aureus strain T113 1280
Staphylococcus aureus strain T115 1280
Staphylococcus aureus strain T118 1280
Staphylococcus aureus strain T124 1280
Staphylococcus aureus strain T161 1280
Staphylococcus aureus strain T166 1280
Staphylococcus aureus strain T20 1280
Staphylococcus aureus strain T211 1280
Staphylococcus aureus strain T212 1280
Staphylococcus aureus strain T23 1280
Staphylococcus aureus strain T236 1280
Staphylococcus aureus strain T23aa 1280
Staphylococcus aureus strain T23aac 1280
Staphylococcus aureus strain T23bb 1280
Staphylococcus aureus strain T248 1280
Staphylococcus aureus strain T249 1280
Staphylococcus aureus strain T25 1280
Staphylococcus aureus strain T250 1280
Staphylococcus aureus strain T262 1280
Staphylococcus aureus strain T264 1280
Staphylococcus aureus strain T295 1280
Staphylococcus aureus strain T296 1280
Staphylococcus aureus strain T297 1280
Staphylococcus aureus strain T36 1280
Staphylococcus aureus strain T38 1280
Staphylococcus aureus strain T382 1280
Staphylococcus aureus strain T38aa 1280
Staphylococcus aureus strain T38bb 1280
Staphylococcus aureus strain T397 1280
Staphylococcus aureus strain T398 1280
Staphylococcus aureus strain T399 1280
Staphylococcus aureus strain T4 1280
Staphylococcus aureus strain T400 1280
Staphylococcus aureus strain T401 1280
Staphylococcus aureus strain T402 1280
Staphylococcus aureus strain T403 1280
Staphylococcus aureus strain T404 1280
Staphylococcus aureus strain T46 1280
Staphylococcus aureus strain T59 1280
Staphylococcus aureus strain T66 1280
Experiment for
Molecule Alteration
DNA sequencing assay
Experiment for
Drug Resistance
Agar dilution method assay
Mechanism Description Twelve mutational changes at 10 positions were identified, with 473Ala-Thr representing a new mutation site. New amino acid substitutions, 465Gln-Arg, 466Leu-Ser, 468Gln-Lys, and 477Ala-Thr in cluster I and 527Ile-Met and 529Ser-Leu in cluster II, were described, thereby emphasizing the high variability of these amino acid positions. Codon 481 was mutated on 32 separate occasions, which indicates a central role of this amino acid. All in vivo isolates that demonstrated two or three amino acid changes exhibited high-level resistance. Interestingly enough, all of these isolates showed the mutational change 481His-Asn, which is capable of conferring low-level resistance on its own, thereby indicating a two-step resistance mechanism in vivo to high-level resistance within these isolates. High-level resistance in vivo, however, was not demonstrated to occur through multiple mutations alone. The single amino acid substitution 468Gln-Lys also causes high-level resistance.
Key Molecule: DNA-directed RNA polymerase subunit beta (RPOB) [13]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Rifampin
Molecule Alteration Missense mutation
p.L466S
Experimental Note Identified from the Human Clinical Data
In Vitro Model Staphylococcus aureus strain T109 1280
Staphylococcus aureus strain T112 1280
Staphylococcus aureus strain T113 1280
Staphylococcus aureus strain T115 1280
Staphylococcus aureus strain T118 1280
Staphylococcus aureus strain T124 1280
Staphylococcus aureus strain T161 1280
Staphylococcus aureus strain T166 1280
Staphylococcus aureus strain T20 1280
Staphylococcus aureus strain T211 1280
Staphylococcus aureus strain T212 1280
Staphylococcus aureus strain T23 1280
Staphylococcus aureus strain T236 1280
Staphylococcus aureus strain T23aa 1280
Staphylococcus aureus strain T23aac 1280
Staphylococcus aureus strain T23bb 1280
Staphylococcus aureus strain T248 1280
Staphylococcus aureus strain T249 1280
Staphylococcus aureus strain T25 1280
Staphylococcus aureus strain T250 1280
Staphylococcus aureus strain T262 1280
Staphylococcus aureus strain T264 1280
Staphylococcus aureus strain T295 1280
Staphylococcus aureus strain T296 1280
Staphylococcus aureus strain T297 1280
Staphylococcus aureus strain T36 1280
Staphylococcus aureus strain T38 1280
Staphylococcus aureus strain T382 1280
Staphylococcus aureus strain T38aa 1280
Staphylococcus aureus strain T38bb 1280
Staphylococcus aureus strain T397 1280
Staphylococcus aureus strain T398 1280
Staphylococcus aureus strain T399 1280
Staphylococcus aureus strain T4 1280
Staphylococcus aureus strain T400 1280
Staphylococcus aureus strain T401 1280
Staphylococcus aureus strain T402 1280
Staphylococcus aureus strain T403 1280
Staphylococcus aureus strain T404 1280
Staphylococcus aureus strain T46 1280
Staphylococcus aureus strain T59 1280
Staphylococcus aureus strain T66 1280
Experiment for
Molecule Alteration
DNA sequencing assay
Experiment for
Drug Resistance
Agar dilution method assay
Mechanism Description Twelve mutational changes at 10 positions were identified, with 473Ala-Thr representing a new mutation site. New amino acid substitutions, 465Gln-Arg, 466Leu-Ser, 468Gln-Lys, and 477Ala-Thr in cluster I and 527Ile-Met and 529Ser-Leu in cluster II, were described, thereby emphasizing the high variability of these amino acid positions. Codon 481 was mutated on 32 separate occasions, which indicates a central role of this amino acid. All in vivo isolates that demonstrated two or three amino acid changes exhibited high-level resistance. Interestingly enough, all of these isolates showed the mutational change 481His-Asn, which is capable of conferring low-level resistance on its own, thereby indicating a two-step resistance mechanism in vivo to high-level resistance within these isolates. High-level resistance in vivo, however, was not demonstrated to occur through multiple mutations alone. The single amino acid substitution 468Gln-Lys also causes high-level resistance.
Key Molecule: DNA-directed RNA polymerase subunit beta (RPOB) [13]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Rifampin
Molecule Alteration Missense mutation
p.Q468K
Experimental Note Identified from the Human Clinical Data
In Vitro Model Staphylococcus aureus strain T109 1280
Staphylococcus aureus strain T112 1280
Staphylococcus aureus strain T113 1280
Staphylococcus aureus strain T115 1280
Staphylococcus aureus strain T118 1280
Staphylococcus aureus strain T124 1280
Staphylococcus aureus strain T161 1280
Staphylococcus aureus strain T166 1280
Staphylococcus aureus strain T20 1280
Staphylococcus aureus strain T211 1280
Staphylococcus aureus strain T212 1280
Staphylococcus aureus strain T23 1280
Staphylococcus aureus strain T236 1280
Staphylococcus aureus strain T23aa 1280
Staphylococcus aureus strain T23aac 1280
Staphylococcus aureus strain T23bb 1280
Staphylococcus aureus strain T248 1280
Staphylococcus aureus strain T249 1280
Staphylococcus aureus strain T25 1280
Staphylococcus aureus strain T250 1280
Staphylococcus aureus strain T262 1280
Staphylococcus aureus strain T264 1280
Staphylococcus aureus strain T295 1280
Staphylococcus aureus strain T296 1280
Staphylococcus aureus strain T297 1280
Staphylococcus aureus strain T36 1280
Staphylococcus aureus strain T38 1280
Staphylococcus aureus strain T382 1280
Staphylococcus aureus strain T38aa 1280
Staphylococcus aureus strain T38bb 1280
Staphylococcus aureus strain T397 1280
Staphylococcus aureus strain T398 1280
Staphylococcus aureus strain T399 1280
Staphylococcus aureus strain T4 1280
Staphylococcus aureus strain T400 1280
Staphylococcus aureus strain T401 1280
Staphylococcus aureus strain T402 1280
Staphylococcus aureus strain T403 1280
Staphylococcus aureus strain T404 1280
Staphylococcus aureus strain T46 1280
Staphylococcus aureus strain T59 1280
Staphylococcus aureus strain T66 1280
Experiment for
Molecule Alteration
DNA sequencing assay
Experiment for
Drug Resistance
Agar dilution method assay
Mechanism Description Twelve mutational changes at 10 positions were identified, with 473Ala-Thr representing a new mutation site. New amino acid substitutions, 465Gln-Arg, 466Leu-Ser, 468Gln-Lys, and 477Ala-Thr in cluster I and 527Ile-Met and 529Ser-Leu in cluster II, were described, thereby emphasizing the high variability of these amino acid positions. Codon 481 was mutated on 32 separate occasions, which indicates a central role of this amino acid. All in vivo isolates that demonstrated two or three amino acid changes exhibited high-level resistance. Interestingly enough, all of these isolates showed the mutational change 481His-Asn, which is capable of conferring low-level resistance on its own, thereby indicating a two-step resistance mechanism in vivo to high-level resistance within these isolates. High-level resistance in vivo, however, was not demonstrated to occur through multiple mutations alone. The single amino acid substitution 468Gln-Lys also causes high-level resistance.
Key Molecule: DNA-directed RNA polymerase subunit beta (RPOB) [13]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Rifampin
Molecule Alteration Missense mutation
p.D471Y
Experimental Note Identified from the Human Clinical Data
In Vitro Model Staphylococcus aureus strain T109 1280
Staphylococcus aureus strain T112 1280
Staphylococcus aureus strain T113 1280
Staphylococcus aureus strain T115 1280
Staphylococcus aureus strain T118 1280
Staphylococcus aureus strain T124 1280
Staphylococcus aureus strain T161 1280
Staphylococcus aureus strain T166 1280
Staphylococcus aureus strain T20 1280
Staphylococcus aureus strain T211 1280
Staphylococcus aureus strain T212 1280
Staphylococcus aureus strain T23 1280
Staphylococcus aureus strain T236 1280
Staphylococcus aureus strain T23aa 1280
Staphylococcus aureus strain T23aac 1280
Staphylococcus aureus strain T23bb 1280
Staphylococcus aureus strain T248 1280
Staphylococcus aureus strain T249 1280
Staphylococcus aureus strain T25 1280
Staphylococcus aureus strain T250 1280
Staphylococcus aureus strain T262 1280
Staphylococcus aureus strain T264 1280
Staphylococcus aureus strain T295 1280
Staphylococcus aureus strain T296 1280
Staphylococcus aureus strain T297 1280
Staphylococcus aureus strain T36 1280
Staphylococcus aureus strain T38 1280
Staphylococcus aureus strain T382 1280
Staphylococcus aureus strain T38aa 1280
Staphylococcus aureus strain T38bb 1280
Staphylococcus aureus strain T397 1280
Staphylococcus aureus strain T398 1280
Staphylococcus aureus strain T399 1280
Staphylococcus aureus strain T4 1280
Staphylococcus aureus strain T400 1280
Staphylococcus aureus strain T401 1280
Staphylococcus aureus strain T402 1280
Staphylococcus aureus strain T403 1280
Staphylococcus aureus strain T404 1280
Staphylococcus aureus strain T46 1280
Staphylococcus aureus strain T59 1280
Staphylococcus aureus strain T66 1280
Experiment for
Molecule Alteration
DNA sequencing assay
Experiment for
Drug Resistance
Agar dilution method assay
Mechanism Description Twelve mutational changes at 10 positions were identified, with 473Ala-Thr representing a new mutation site. New amino acid substitutions, 465Gln-Arg, 466Leu-Ser, 468Gln-Lys, and 477Ala-Thr in cluster I and 527Ile-Met and 529Ser-Leu in cluster II, were described, thereby emphasizing the high variability of these amino acid positions. Codon 481 was mutated on 32 separate occasions, which indicates a central role of this amino acid. All in vivo isolates that demonstrated two or three amino acid changes exhibited high-level resistance. Interestingly enough, all of these isolates showed the mutational change 481His-Asn, which is capable of conferring low-level resistance on its own, thereby indicating a two-step resistance mechanism in vivo to high-level resistance within these isolates. High-level resistance in vivo, however, was not demonstrated to occur through multiple mutations alone. The single amino acid substitution 468Gln-Lys also causes high-level resistance.
Key Molecule: DNA-directed RNA polymerase subunit beta (RPOB) [13]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Rifampin
Molecule Alteration Missense mutation
p.A477T
Experimental Note Identified from the Human Clinical Data
In Vitro Model Staphylococcus aureus strain T109 1280
Staphylococcus aureus strain T112 1280
Staphylococcus aureus strain T113 1280
Staphylococcus aureus strain T115 1280
Staphylococcus aureus strain T118 1280
Staphylococcus aureus strain T124 1280
Staphylococcus aureus strain T161 1280
Staphylococcus aureus strain T166 1280
Staphylococcus aureus strain T20 1280
Staphylococcus aureus strain T211 1280
Staphylococcus aureus strain T212 1280
Staphylococcus aureus strain T23 1280
Staphylococcus aureus strain T236 1280
Staphylococcus aureus strain T23aa 1280
Staphylococcus aureus strain T23aac 1280
Staphylococcus aureus strain T23bb 1280
Staphylococcus aureus strain T248 1280
Staphylococcus aureus strain T249 1280
Staphylococcus aureus strain T25 1280
Staphylococcus aureus strain T250 1280
Staphylococcus aureus strain T262 1280
Staphylococcus aureus strain T264 1280
Staphylococcus aureus strain T295 1280
Staphylococcus aureus strain T296 1280
Staphylococcus aureus strain T297 1280
Staphylococcus aureus strain T36 1280
Staphylococcus aureus strain T38 1280
Staphylococcus aureus strain T382 1280
Staphylococcus aureus strain T38aa 1280
Staphylococcus aureus strain T38bb 1280
Staphylococcus aureus strain T397 1280
Staphylococcus aureus strain T398 1280
Staphylococcus aureus strain T399 1280
Staphylococcus aureus strain T4 1280
Staphylococcus aureus strain T400 1280
Staphylococcus aureus strain T401 1280
Staphylococcus aureus strain T402 1280
Staphylococcus aureus strain T403 1280
Staphylococcus aureus strain T404 1280
Staphylococcus aureus strain T46 1280
Staphylococcus aureus strain T59 1280
Staphylococcus aureus strain T66 1280
Experiment for
Molecule Alteration
DNA sequencing assay
Experiment for
Drug Resistance
Agar dilution method assay
Mechanism Description Twelve mutational changes at 10 positions were identified, with 473Ala-Thr representing a new mutation site. New amino acid substitutions, 465Gln-Arg, 466Leu-Ser, 468Gln-Lys, and 477Ala-Thr in cluster I and 527Ile-Met and 529Ser-Leu in cluster II, were described, thereby emphasizing the high variability of these amino acid positions. Codon 481 was mutated on 32 separate occasions, which indicates a central role of this amino acid. All in vivo isolates that demonstrated two or three amino acid changes exhibited high-level resistance. Interestingly enough, all of these isolates showed the mutational change 481His-Asn, which is capable of conferring low-level resistance on its own, thereby indicating a two-step resistance mechanism in vivo to high-level resistance within these isolates. High-level resistance in vivo, however, was not demonstrated to occur through multiple mutations alone. The single amino acid substitution 468Gln-Lys also causes high-level resistance.
Key Molecule: DNA-directed RNA polymerase subunit beta (RPOB) [13]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Rifampin
Molecule Alteration Missense mutation
p.I527M
Experimental Note Identified from the Human Clinical Data
In Vitro Model Staphylococcus aureus strain T109 1280
Staphylococcus aureus strain T112 1280
Staphylococcus aureus strain T113 1280
Staphylococcus aureus strain T115 1280
Staphylococcus aureus strain T118 1280
Staphylococcus aureus strain T124 1280
Staphylococcus aureus strain T161 1280
Staphylococcus aureus strain T166 1280
Staphylococcus aureus strain T20 1280
Staphylococcus aureus strain T211 1280
Staphylococcus aureus strain T212 1280
Staphylococcus aureus strain T23 1280
Staphylococcus aureus strain T236 1280
Staphylococcus aureus strain T23aa 1280
Staphylococcus aureus strain T23aac 1280
Staphylococcus aureus strain T23bb 1280
Staphylococcus aureus strain T248 1280
Staphylococcus aureus strain T249 1280
Staphylococcus aureus strain T25 1280
Staphylococcus aureus strain T250 1280
Staphylococcus aureus strain T262 1280
Staphylococcus aureus strain T264 1280
Staphylococcus aureus strain T295 1280
Staphylococcus aureus strain T296 1280
Staphylococcus aureus strain T297 1280
Staphylococcus aureus strain T36 1280
Staphylococcus aureus strain T38 1280
Staphylococcus aureus strain T382 1280
Staphylococcus aureus strain T38aa 1280
Staphylococcus aureus strain T38bb 1280
Staphylococcus aureus strain T397 1280
Staphylococcus aureus strain T398 1280
Staphylococcus aureus strain T399 1280
Staphylococcus aureus strain T4 1280
Staphylococcus aureus strain T400 1280
Staphylococcus aureus strain T401 1280
Staphylococcus aureus strain T402 1280
Staphylococcus aureus strain T403 1280
Staphylococcus aureus strain T404 1280
Staphylococcus aureus strain T46 1280
Staphylococcus aureus strain T59 1280
Staphylococcus aureus strain T66 1280
Experiment for
Molecule Alteration
DNA sequencing assay
Experiment for
Drug Resistance
Agar dilution method assay
Mechanism Description Twelve mutational changes at 10 positions were identified, with 473Ala-Thr representing a new mutation site. New amino acid substitutions, 465Gln-Arg, 466Leu-Ser, 468Gln-Lys, and 477Ala-Thr in cluster I and 527Ile-Met and 529Ser-Leu in cluster II, were described, thereby emphasizing the high variability of these amino acid positions. Codon 481 was mutated on 32 separate occasions, which indicates a central role of this amino acid. All in vivo isolates that demonstrated two or three amino acid changes exhibited high-level resistance. Interestingly enough, all of these isolates showed the mutational change 481His-Asn, which is capable of conferring low-level resistance on its own, thereby indicating a two-step resistance mechanism in vivo to high-level resistance within these isolates. High-level resistance in vivo, however, was not demonstrated to occur through multiple mutations alone. The single amino acid substitution 468Gln-Lys also causes high-level resistance.
Key Molecule: DNA-directed RNA polymerase subunit beta (RPOB) [13]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Rifampin
Molecule Alteration Missense mutation
p.S529L
Experimental Note Identified from the Human Clinical Data
In Vitro Model Staphylococcus aureus strain T109 1280
Staphylococcus aureus strain T112 1280
Staphylococcus aureus strain T113 1280
Staphylococcus aureus strain T115 1280
Staphylococcus aureus strain T118 1280
Staphylococcus aureus strain T124 1280
Staphylococcus aureus strain T161 1280
Staphylococcus aureus strain T166 1280
Staphylococcus aureus strain T20 1280
Staphylococcus aureus strain T211 1280
Staphylococcus aureus strain T212 1280
Staphylococcus aureus strain T23 1280
Staphylococcus aureus strain T236 1280
Staphylococcus aureus strain T23aa 1280
Staphylococcus aureus strain T23aac 1280
Staphylococcus aureus strain T23bb 1280
Staphylococcus aureus strain T248 1280
Staphylococcus aureus strain T249 1280
Staphylococcus aureus strain T25 1280
Staphylococcus aureus strain T250 1280
Staphylococcus aureus strain T262 1280
Staphylococcus aureus strain T264 1280
Staphylococcus aureus strain T295 1280
Staphylococcus aureus strain T296 1280
Staphylococcus aureus strain T297 1280
Staphylococcus aureus strain T36 1280
Staphylococcus aureus strain T38 1280
Staphylococcus aureus strain T382 1280
Staphylococcus aureus strain T38aa 1280
Staphylococcus aureus strain T38bb 1280
Staphylococcus aureus strain T397 1280
Staphylococcus aureus strain T398 1280
Staphylococcus aureus strain T399 1280
Staphylococcus aureus strain T4 1280
Staphylococcus aureus strain T400 1280
Staphylococcus aureus strain T401 1280
Staphylococcus aureus strain T402 1280
Staphylococcus aureus strain T403 1280
Staphylococcus aureus strain T404 1280
Staphylococcus aureus strain T46 1280
Staphylococcus aureus strain T59 1280
Staphylococcus aureus strain T66 1280
Experiment for
Molecule Alteration
DNA sequencing assay
Experiment for
Drug Resistance
Agar dilution method assay
Mechanism Description Twelve mutational changes at 10 positions were identified, with 473Ala-Thr representing a new mutation site. New amino acid substitutions, 465Gln-Arg, 466Leu-Ser, 468Gln-Lys, and 477Ala-Thr in cluster I and 527Ile-Met and 529Ser-Leu in cluster II, were described, thereby emphasizing the high variability of these amino acid positions. Codon 481 was mutated on 32 separate occasions, which indicates a central role of this amino acid. All in vivo isolates that demonstrated two or three amino acid changes exhibited high-level resistance. Interestingly enough, all of these isolates showed the mutational change 481His-Asn, which is capable of conferring low-level resistance on its own, thereby indicating a two-step resistance mechanism in vivo to high-level resistance within these isolates. High-level resistance in vivo, however, was not demonstrated to occur through multiple mutations alone. The single amino acid substitution 468Gln-Lys also causes high-level resistance.
Key Molecule: DNA-directed RNA polymerase subunit beta (RPOB) [13]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Rifampin
Molecule Alteration Missense mutation
p.H481N+p.L466S
Experimental Note Identified from the Human Clinical Data
In Vitro Model Staphylococcus aureus strain T109 1280
Staphylococcus aureus strain T112 1280
Staphylococcus aureus strain T113 1280
Staphylococcus aureus strain T115 1280
Staphylococcus aureus strain T118 1280
Staphylococcus aureus strain T124 1280
Staphylococcus aureus strain T161 1280
Staphylococcus aureus strain T166 1280
Staphylococcus aureus strain T20 1280
Staphylococcus aureus strain T211 1280
Staphylococcus aureus strain T212 1280
Staphylococcus aureus strain T23 1280
Staphylococcus aureus strain T236 1280
Staphylococcus aureus strain T23aa 1280
Staphylococcus aureus strain T23aac 1280
Staphylococcus aureus strain T23bb 1280
Staphylococcus aureus strain T248 1280
Staphylococcus aureus strain T249 1280
Staphylococcus aureus strain T25 1280
Staphylococcus aureus strain T250 1280
Staphylococcus aureus strain T262 1280
Staphylococcus aureus strain T264 1280
Staphylococcus aureus strain T295 1280
Staphylococcus aureus strain T296 1280
Staphylococcus aureus strain T297 1280
Staphylococcus aureus strain T36 1280
Staphylococcus aureus strain T38 1280
Staphylococcus aureus strain T382 1280
Staphylococcus aureus strain T38aa 1280
Staphylococcus aureus strain T38bb 1280
Staphylococcus aureus strain T397 1280
Staphylococcus aureus strain T398 1280
Staphylococcus aureus strain T399 1280
Staphylococcus aureus strain T4 1280
Staphylococcus aureus strain T400 1280
Staphylococcus aureus strain T401 1280
Staphylococcus aureus strain T402 1280
Staphylococcus aureus strain T403 1280
Staphylococcus aureus strain T404 1280
Staphylococcus aureus strain T46 1280
Staphylococcus aureus strain T59 1280
Staphylococcus aureus strain T66 1280
Experiment for
Molecule Alteration
DNA sequencing assay
Experiment for
Drug Resistance
Agar dilution method assay
Mechanism Description Twelve mutational changes at 10 positions were identified, with 473Ala-Thr representing a new mutation site. New amino acid substitutions, 465Gln-Arg, 466Leu-Ser, 468Gln-Lys, and 477Ala-Thr in cluster I and 527Ile-Met and 529Ser-Leu in cluster II, were described, thereby emphasizing the high variability of these amino acid positions. Codon 481 was mutated on 32 separate occasions, which indicates a central role of this amino acid. All in vivo isolates that demonstrated two or three amino acid changes exhibited high-level resistance. Interestingly enough, all of these isolates showed the mutational change 481His-Asn, which is capable of conferring low-level resistance on its own, thereby indicating a two-step resistance mechanism in vivo to high-level resistance within these isolates. High-level resistance in vivo, however, was not demonstrated to occur through multiple mutations alone. The single amino acid substitution 468Gln-Lys also causes high-level resistance.
Key Molecule: DNA-directed RNA polymerase subunit beta (RPOB) [13]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Rifampin
Molecule Alteration Missense mutation
p.H481N+p.S529L
Experimental Note Identified from the Human Clinical Data
In Vitro Model Staphylococcus aureus strain T109 1280
Staphylococcus aureus strain T112 1280
Staphylococcus aureus strain T113 1280
Staphylococcus aureus strain T115 1280
Staphylococcus aureus strain T118 1280
Staphylococcus aureus strain T124 1280
Staphylococcus aureus strain T161 1280
Staphylococcus aureus strain T166 1280
Staphylococcus aureus strain T20 1280
Staphylococcus aureus strain T211 1280
Staphylococcus aureus strain T212 1280
Staphylococcus aureus strain T23 1280
Staphylococcus aureus strain T236 1280
Staphylococcus aureus strain T23aa 1280
Staphylococcus aureus strain T23aac 1280
Staphylococcus aureus strain T23bb 1280
Staphylococcus aureus strain T248 1280
Staphylococcus aureus strain T249 1280
Staphylococcus aureus strain T25 1280
Staphylococcus aureus strain T250 1280
Staphylococcus aureus strain T262 1280
Staphylococcus aureus strain T264 1280
Staphylococcus aureus strain T295 1280
Staphylococcus aureus strain T296 1280
Staphylococcus aureus strain T297 1280
Staphylococcus aureus strain T36 1280
Staphylococcus aureus strain T38 1280
Staphylococcus aureus strain T382 1280
Staphylococcus aureus strain T38aa 1280
Staphylococcus aureus strain T38bb 1280
Staphylococcus aureus strain T397 1280
Staphylococcus aureus strain T398 1280
Staphylococcus aureus strain T399 1280
Staphylococcus aureus strain T4 1280
Staphylococcus aureus strain T400 1280
Staphylococcus aureus strain T401 1280
Staphylococcus aureus strain T402 1280
Staphylococcus aureus strain T403 1280
Staphylococcus aureus strain T404 1280
Staphylococcus aureus strain T46 1280
Staphylococcus aureus strain T59 1280
Staphylococcus aureus strain T66 1280
Experiment for
Molecule Alteration
DNA sequencing assay
Experiment for
Drug Resistance
Agar dilution method assay
Mechanism Description Twelve mutational changes at 10 positions were identified, with 473Ala-Thr representing a new mutation site. New amino acid substitutions, 465Gln-Arg, 466Leu-Ser, 468Gln-Lys, and 477Ala-Thr in cluster I and 527Ile-Met and 529Ser-Leu in cluster II, were described, thereby emphasizing the high variability of these amino acid positions. Codon 481 was mutated on 32 separate occasions, which indicates a central role of this amino acid. All in vivo isolates that demonstrated two or three amino acid changes exhibited high-level resistance. Interestingly enough, all of these isolates showed the mutational change 481His-Asn, which is capable of conferring low-level resistance on its own, thereby indicating a two-step resistance mechanism in vivo to high-level resistance within these isolates. High-level resistance in vivo, however, was not demonstrated to occur through multiple mutations alone. The single amino acid substitution 468Gln-Lys also causes high-level resistance.
Key Molecule: DNA-directed RNA polymerase subunit beta (RPOB) [13]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Rifampin
Molecule Alteration Missense mutation
p.H481N+p.I527M
Experimental Note Identified from the Human Clinical Data
In Vitro Model Staphylococcus aureus strain T109 1280
Staphylococcus aureus strain T112 1280
Staphylococcus aureus strain T113 1280
Staphylococcus aureus strain T115 1280
Staphylococcus aureus strain T118 1280
Staphylococcus aureus strain T124 1280
Staphylococcus aureus strain T161 1280
Staphylococcus aureus strain T166 1280
Staphylococcus aureus strain T20 1280
Staphylococcus aureus strain T211 1280
Staphylococcus aureus strain T212 1280
Staphylococcus aureus strain T23 1280
Staphylococcus aureus strain T236 1280
Staphylococcus aureus strain T23aa 1280
Staphylococcus aureus strain T23aac 1280
Staphylococcus aureus strain T23bb 1280
Staphylococcus aureus strain T248 1280
Staphylococcus aureus strain T249 1280
Staphylococcus aureus strain T25 1280
Staphylococcus aureus strain T250 1280
Staphylococcus aureus strain T262 1280
Staphylococcus aureus strain T264 1280
Staphylococcus aureus strain T295 1280
Staphylococcus aureus strain T296 1280
Staphylococcus aureus strain T297 1280
Staphylococcus aureus strain T36 1280
Staphylococcus aureus strain T38 1280
Staphylococcus aureus strain T382 1280
Staphylococcus aureus strain T38aa 1280
Staphylococcus aureus strain T38bb 1280
Staphylococcus aureus strain T397 1280
Staphylococcus aureus strain T398 1280
Staphylococcus aureus strain T399 1280
Staphylococcus aureus strain T4 1280
Staphylococcus aureus strain T400 1280
Staphylococcus aureus strain T401 1280
Staphylococcus aureus strain T402 1280
Staphylococcus aureus strain T403 1280
Staphylococcus aureus strain T404 1280
Staphylococcus aureus strain T46 1280
Staphylococcus aureus strain T59 1280
Staphylococcus aureus strain T66 1280
Experiment for
Molecule Alteration
DNA sequencing assay
Experiment for
Drug Resistance
Agar dilution method assay
Mechanism Description Twelve mutational changes at 10 positions were identified, with 473Ala-Thr representing a new mutation site. New amino acid substitutions, 465Gln-Arg, 466Leu-Ser, 468Gln-Lys, and 477Ala-Thr in cluster I and 527Ile-Met and 529Ser-Leu in cluster II, were described, thereby emphasizing the high variability of these amino acid positions. Codon 481 was mutated on 32 separate occasions, which indicates a central role of this amino acid. All in vivo isolates that demonstrated two or three amino acid changes exhibited high-level resistance. Interestingly enough, all of these isolates showed the mutational change 481His-Asn, which is capable of conferring low-level resistance on its own, thereby indicating a two-step resistance mechanism in vivo to high-level resistance within these isolates. High-level resistance in vivo, however, was not demonstrated to occur through multiple mutations alone. The single amino acid substitution 468Gln-Lys also causes high-level resistance.
Key Molecule: DNA-directed RNA polymerase subunit beta (RPOB) [13]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Rifampin
Molecule Alteration Missense mutation
p.H481N+p.S529L+p.Q465R
Experimental Note Identified from the Human Clinical Data
In Vitro Model Staphylococcus aureus strain T109 1280
Staphylococcus aureus strain T112 1280
Staphylococcus aureus strain T113 1280
Staphylococcus aureus strain T115 1280
Staphylococcus aureus strain T118 1280
Staphylococcus aureus strain T124 1280
Staphylococcus aureus strain T161 1280
Staphylococcus aureus strain T166 1280
Staphylococcus aureus strain T20 1280
Staphylococcus aureus strain T211 1280
Staphylococcus aureus strain T212 1280
Staphylococcus aureus strain T23 1280
Staphylococcus aureus strain T236 1280
Staphylococcus aureus strain T23aa 1280
Staphylococcus aureus strain T23aac 1280
Staphylococcus aureus strain T23bb 1280
Staphylococcus aureus strain T248 1280
Staphylococcus aureus strain T249 1280
Staphylococcus aureus strain T25 1280
Staphylococcus aureus strain T250 1280
Staphylococcus aureus strain T262 1280
Staphylococcus aureus strain T264 1280
Staphylococcus aureus strain T295 1280
Staphylococcus aureus strain T296 1280
Staphylococcus aureus strain T297 1280
Staphylococcus aureus strain T36 1280
Staphylococcus aureus strain T38 1280
Staphylococcus aureus strain T382 1280
Staphylococcus aureus strain T38aa 1280
Staphylococcus aureus strain T38bb 1280
Staphylococcus aureus strain T397 1280
Staphylococcus aureus strain T398 1280
Staphylococcus aureus strain T399 1280
Staphylococcus aureus strain T4 1280
Staphylococcus aureus strain T400 1280
Staphylococcus aureus strain T401 1280
Staphylococcus aureus strain T402 1280
Staphylococcus aureus strain T403 1280
Staphylococcus aureus strain T404 1280
Staphylococcus aureus strain T46 1280
Staphylococcus aureus strain T59 1280
Staphylococcus aureus strain T66 1280
Experiment for
Molecule Alteration
DNA sequencing assay
Experiment for
Drug Resistance
Agar dilution method assay
Mechanism Description Twelve mutational changes at 10 positions were identified, with 473Ala-Thr representing a new mutation site. New amino acid substitutions, 465Gln-Arg, 466Leu-Ser, 468Gln-Lys, and 477Ala-Thr in cluster I and 527Ile-Met and 529Ser-Leu in cluster II, were described, thereby emphasizing the high variability of these amino acid positions. Codon 481 was mutated on 32 separate occasions, which indicates a central role of this amino acid. All in vivo isolates that demonstrated two or three amino acid changes exhibited high-level resistance. Interestingly enough, all of these isolates showed the mutational change 481His-Asn, which is capable of conferring low-level resistance on its own, thereby indicating a two-step resistance mechanism in vivo to high-level resistance within these isolates. High-level resistance in vivo, however, was not demonstrated to occur through multiple mutations alone. The single amino acid substitution 468Gln-Lys also causes high-level resistance.
Key Molecule: DNA-directed RNA polymerase subunit beta (RPOB) [13]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Rifampin
Molecule Alteration Missense mutation
p.H481N+p.A473T+p.A477T
Experimental Note Identified from the Human Clinical Data
In Vitro Model Staphylococcus aureus strain T109 1280
Staphylococcus aureus strain T112 1280
Staphylococcus aureus strain T113 1280
Staphylococcus aureus strain T115 1280
Staphylococcus aureus strain T118 1280
Staphylococcus aureus strain T124 1280
Staphylococcus aureus strain T161 1280
Staphylococcus aureus strain T166 1280
Staphylococcus aureus strain T20 1280
Staphylococcus aureus strain T211 1280
Staphylococcus aureus strain T212 1280
Staphylococcus aureus strain T23 1280
Staphylococcus aureus strain T236 1280
Staphylococcus aureus strain T23aa 1280
Staphylococcus aureus strain T23aac 1280
Staphylococcus aureus strain T23bb 1280
Staphylococcus aureus strain T248 1280
Staphylococcus aureus strain T249 1280
Staphylococcus aureus strain T25 1280
Staphylococcus aureus strain T250 1280
Staphylococcus aureus strain T262 1280
Staphylococcus aureus strain T264 1280
Staphylococcus aureus strain T295 1280
Staphylococcus aureus strain T296 1280
Staphylococcus aureus strain T297 1280
Staphylococcus aureus strain T36 1280
Staphylococcus aureus strain T38 1280
Staphylococcus aureus strain T382 1280
Staphylococcus aureus strain T38aa 1280
Staphylococcus aureus strain T38bb 1280
Staphylococcus aureus strain T397 1280
Staphylococcus aureus strain T398 1280
Staphylococcus aureus strain T399 1280
Staphylococcus aureus strain T4 1280
Staphylococcus aureus strain T400 1280
Staphylococcus aureus strain T401 1280
Staphylococcus aureus strain T402 1280
Staphylococcus aureus strain T403 1280
Staphylococcus aureus strain T404 1280
Staphylococcus aureus strain T46 1280
Staphylococcus aureus strain T59 1280
Staphylococcus aureus strain T66 1280
Experiment for
Molecule Alteration
DNA sequencing assay
Experiment for
Drug Resistance
Agar dilution method assay
Mechanism Description Twelve mutational changes at 10 positions were identified, with 473Ala-Thr representing a new mutation site. New amino acid substitutions, 465Gln-Arg, 466Leu-Ser, 468Gln-Lys, and 477Ala-Thr in cluster I and 527Ile-Met and 529Ser-Leu in cluster II, were described, thereby emphasizing the high variability of these amino acid positions. Codon 481 was mutated on 32 separate occasions, which indicates a central role of this amino acid. All in vivo isolates that demonstrated two or three amino acid changes exhibited high-level resistance. Interestingly enough, all of these isolates showed the mutational change 481His-Asn, which is capable of conferring low-level resistance on its own, thereby indicating a two-step resistance mechanism in vivo to high-level resistance within these isolates. High-level resistance in vivo, however, was not demonstrated to occur through multiple mutations alone. The single amino acid substitution 468Gln-Lys also causes high-level resistance.
Key Molecule: DNA-directed RNA polymerase subunit beta (RPOB) [13]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Rifampin
Molecule Alteration Missense mutation
p.D471Y+p.S486L
Experimental Note Identified from the Human Clinical Data
In Vitro Model Staphylococcus aureus strain T109 1280
Staphylococcus aureus strain T112 1280
Staphylococcus aureus strain T113 1280
Staphylococcus aureus strain T115 1280
Staphylococcus aureus strain T118 1280
Staphylococcus aureus strain T124 1280
Staphylococcus aureus strain T161 1280
Staphylococcus aureus strain T166 1280
Staphylococcus aureus strain T20 1280
Staphylococcus aureus strain T211 1280
Staphylococcus aureus strain T212 1280
Staphylococcus aureus strain T23 1280
Staphylococcus aureus strain T236 1280
Staphylococcus aureus strain T23aa 1280
Staphylococcus aureus strain T23aac 1280
Staphylococcus aureus strain T23bb 1280
Staphylococcus aureus strain T248 1280
Staphylococcus aureus strain T249 1280
Staphylococcus aureus strain T25 1280
Staphylococcus aureus strain T250 1280
Staphylococcus aureus strain T262 1280
Staphylococcus aureus strain T264 1280
Staphylococcus aureus strain T295 1280
Staphylococcus aureus strain T296 1280
Staphylococcus aureus strain T297 1280
Staphylococcus aureus strain T36 1280
Staphylococcus aureus strain T38 1280
Staphylococcus aureus strain T382 1280
Staphylococcus aureus strain T38aa 1280
Staphylococcus aureus strain T38bb 1280
Staphylococcus aureus strain T397 1280
Staphylococcus aureus strain T398 1280
Staphylococcus aureus strain T399 1280
Staphylococcus aureus strain T4 1280
Staphylococcus aureus strain T400 1280
Staphylococcus aureus strain T401 1280
Staphylococcus aureus strain T402 1280
Staphylococcus aureus strain T403 1280
Staphylococcus aureus strain T404 1280
Staphylococcus aureus strain T46 1280
Staphylococcus aureus strain T59 1280
Staphylococcus aureus strain T66 1280
Experiment for
Molecule Alteration
DNA sequencing assay
Experiment for
Drug Resistance
Agar dilution method assay
Mechanism Description Twelve mutational changes at 10 positions were identified, with 473Ala-Thr representing a new mutation site. New amino acid substitutions, 465Gln-Arg, 466Leu-Ser, 468Gln-Lys, and 477Ala-Thr in cluster I and 527Ile-Met and 529Ser-Leu in cluster II, were described, thereby emphasizing the high variability of these amino acid positions. Codon 481 was mutated on 32 separate occasions, which indicates a central role of this amino acid. All in vivo isolates that demonstrated two or three amino acid changes exhibited high-level resistance. Interestingly enough, all of these isolates showed the mutational change 481His-Asn, which is capable of conferring low-level resistance on its own, thereby indicating a two-step resistance mechanism in vivo to high-level resistance within these isolates. High-level resistance in vivo, however, was not demonstrated to occur through multiple mutations alone. The single amino acid substitution 468Gln-Lys also causes high-level resistance.
Rifapentine
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Drug Resistance Data Categorized by Their Corresponding Mechanisms
  Aberration of the Drug's Therapeutic Target (ADTT) Click to Show/Hide
Key Molecule: DNA-directed RNA polymerase subunit beta (RPOB) [13]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Rifapentine
Molecule Alteration Missense mutation
p.A473T
Experimental Note Identified from the Human Clinical Data
In Vitro Model Staphylococcus aureus strain T109 1280
Staphylococcus aureus strain T112 1280
Staphylococcus aureus strain T113 1280
Staphylococcus aureus strain T115 1280
Staphylococcus aureus strain T118 1280
Staphylococcus aureus strain T124 1280
Staphylococcus aureus strain T161 1280
Staphylococcus aureus strain T166 1280
Staphylococcus aureus strain T20 1280
Staphylococcus aureus strain T211 1280
Staphylococcus aureus strain T212 1280
Staphylococcus aureus strain T23 1280
Staphylococcus aureus strain T236 1280
Staphylococcus aureus strain T23aa 1280
Staphylococcus aureus strain T23aac 1280
Staphylococcus aureus strain T23bb 1280
Staphylococcus aureus strain T248 1280
Staphylococcus aureus strain T249 1280
Staphylococcus aureus strain T25 1280
Staphylococcus aureus strain T250 1280
Staphylococcus aureus strain T262 1280
Staphylococcus aureus strain T264 1280
Staphylococcus aureus strain T295 1280
Staphylococcus aureus strain T296 1280
Staphylococcus aureus strain T297 1280
Staphylococcus aureus strain T36 1280
Staphylococcus aureus strain T38 1280
Staphylococcus aureus strain T382 1280
Staphylococcus aureus strain T38aa 1280
Staphylococcus aureus strain T38bb 1280
Staphylococcus aureus strain T397 1280
Staphylococcus aureus strain T398 1280
Staphylococcus aureus strain T399 1280
Staphylococcus aureus strain T4 1280
Staphylococcus aureus strain T400 1280
Staphylococcus aureus strain T401 1280
Staphylococcus aureus strain T402 1280
Staphylococcus aureus strain T403 1280
Staphylococcus aureus strain T404 1280
Staphylococcus aureus strain T46 1280
Staphylococcus aureus strain T59 1280
Staphylococcus aureus strain T66 1280
Experiment for
Molecule Alteration
DNA sequencing assay
Experiment for
Drug Resistance
Agar dilution method assay
Mechanism Description Twelve mutational changes at 10 positions were identified, with 473Ala-Thr representing a new mutation site. New amino acid substitutions, 465Gln-Arg, 466Leu-Ser, 468Gln-Lys, and 477Ala-Thr in cluster I and 527Ile-Met and 529Ser-Leu in cluster II, were described, thereby emphasizing the high variability of these amino acid positions. Codon 481 was mutated on 32 separate occasions, which indicates a central role of this amino acid. All in vivo isolates that demonstrated two or three amino acid changes exhibited high-level resistance. Interestingly enough, all of these isolates showed the mutational change 481His-Asn, which is capable of conferring low-level resistance on its own, thereby indicating a two-step resistance mechanism in vivo to high-level resistance within these isolates. High-level resistance in vivo, however, was not demonstrated to occur through multiple mutations alone. The single amino acid substitution 468Gln-Lys also causes high-level resistance.
Key Molecule: DNA-directed RNA polymerase subunit beta (RPOB) [13]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Rifapentine
Molecule Alteration Missense mutation
p.Q465R
Experimental Note Identified from the Human Clinical Data
In Vitro Model Staphylococcus aureus strain T109 1280
Staphylococcus aureus strain T112 1280
Staphylococcus aureus strain T113 1280
Staphylococcus aureus strain T115 1280
Staphylococcus aureus strain T118 1280
Staphylococcus aureus strain T124 1280
Staphylococcus aureus strain T161 1280
Staphylococcus aureus strain T166 1280
Staphylococcus aureus strain T20 1280
Staphylococcus aureus strain T211 1280
Staphylococcus aureus strain T212 1280
Staphylococcus aureus strain T23 1280
Staphylococcus aureus strain T236 1280
Staphylococcus aureus strain T23aa 1280
Staphylococcus aureus strain T23aac 1280
Staphylococcus aureus strain T23bb 1280
Staphylococcus aureus strain T248 1280
Staphylococcus aureus strain T249 1280
Staphylococcus aureus strain T25 1280
Staphylococcus aureus strain T250 1280
Staphylococcus aureus strain T262 1280
Staphylococcus aureus strain T264 1280
Staphylococcus aureus strain T295 1280
Staphylococcus aureus strain T296 1280
Staphylococcus aureus strain T297 1280
Staphylococcus aureus strain T36 1280
Staphylococcus aureus strain T38 1280
Staphylococcus aureus strain T382 1280
Staphylococcus aureus strain T38aa 1280
Staphylococcus aureus strain T38bb 1280
Staphylococcus aureus strain T397 1280
Staphylococcus aureus strain T398 1280
Staphylococcus aureus strain T399 1280
Staphylococcus aureus strain T4 1280
Staphylococcus aureus strain T400 1280
Staphylococcus aureus strain T401 1280
Staphylococcus aureus strain T402 1280
Staphylococcus aureus strain T403 1280
Staphylococcus aureus strain T404 1280
Staphylococcus aureus strain T46 1280
Staphylococcus aureus strain T59 1280
Staphylococcus aureus strain T66 1280
Experiment for
Molecule Alteration
DNA sequencing assay
Experiment for
Drug Resistance
Agar dilution method assay
Mechanism Description Twelve mutational changes at 10 positions were identified, with 473Ala-Thr representing a new mutation site. New amino acid substitutions, 465Gln-Arg, 466Leu-Ser, 468Gln-Lys, and 477Ala-Thr in cluster I and 527Ile-Met and 529Ser-Leu in cluster II, were described, thereby emphasizing the high variability of these amino acid positions. Codon 481 was mutated on 32 separate occasions, which indicates a central role of this amino acid. All in vivo isolates that demonstrated two or three amino acid changes exhibited high-level resistance. Interestingly enough, all of these isolates showed the mutational change 481His-Asn, which is capable of conferring low-level resistance on its own, thereby indicating a two-step resistance mechanism in vivo to high-level resistance within these isolates. High-level resistance in vivo, however, was not demonstrated to occur through multiple mutations alone. The single amino acid substitution 468Gln-Lys also causes high-level resistance.
Key Molecule: DNA-directed RNA polymerase subunit beta (RPOB) [13]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Rifapentine
Molecule Alteration Missense mutation
p.L466S
Experimental Note Identified from the Human Clinical Data
In Vitro Model Staphylococcus aureus strain T109 1280
Staphylococcus aureus strain T112 1280
Staphylococcus aureus strain T113 1280
Staphylococcus aureus strain T115 1280
Staphylococcus aureus strain T118 1280
Staphylococcus aureus strain T124 1280
Staphylococcus aureus strain T161 1280
Staphylococcus aureus strain T166 1280
Staphylococcus aureus strain T20 1280
Staphylococcus aureus strain T211 1280
Staphylococcus aureus strain T212 1280
Staphylococcus aureus strain T23 1280
Staphylococcus aureus strain T236 1280
Staphylococcus aureus strain T23aa 1280
Staphylococcus aureus strain T23aac 1280
Staphylococcus aureus strain T23bb 1280
Staphylococcus aureus strain T248 1280
Staphylococcus aureus strain T249 1280
Staphylococcus aureus strain T25 1280
Staphylococcus aureus strain T250 1280
Staphylococcus aureus strain T262 1280
Staphylococcus aureus strain T264 1280
Staphylococcus aureus strain T295 1280
Staphylococcus aureus strain T296 1280
Staphylococcus aureus strain T297 1280
Staphylococcus aureus strain T36 1280
Staphylococcus aureus strain T38 1280
Staphylococcus aureus strain T382 1280
Staphylococcus aureus strain T38aa 1280
Staphylococcus aureus strain T38bb 1280
Staphylococcus aureus strain T397 1280
Staphylococcus aureus strain T398 1280
Staphylococcus aureus strain T399 1280
Staphylococcus aureus strain T4 1280
Staphylococcus aureus strain T400 1280
Staphylococcus aureus strain T401 1280
Staphylococcus aureus strain T402 1280
Staphylococcus aureus strain T403 1280
Staphylococcus aureus strain T404 1280
Staphylococcus aureus strain T46 1280
Staphylococcus aureus strain T59 1280
Staphylococcus aureus strain T66 1280
Experiment for
Molecule Alteration
DNA sequencing assay
Experiment for
Drug Resistance
Agar dilution method assay
Mechanism Description Twelve mutational changes at 10 positions were identified, with 473Ala-Thr representing a new mutation site. New amino acid substitutions, 465Gln-Arg, 466Leu-Ser, 468Gln-Lys, and 477Ala-Thr in cluster I and 527Ile-Met and 529Ser-Leu in cluster II, were described, thereby emphasizing the high variability of these amino acid positions. Codon 481 was mutated on 32 separate occasions, which indicates a central role of this amino acid. All in vivo isolates that demonstrated two or three amino acid changes exhibited high-level resistance. Interestingly enough, all of these isolates showed the mutational change 481His-Asn, which is capable of conferring low-level resistance on its own, thereby indicating a two-step resistance mechanism in vivo to high-level resistance within these isolates. High-level resistance in vivo, however, was not demonstrated to occur through multiple mutations alone. The single amino acid substitution 468Gln-Lys also causes high-level resistance.
Key Molecule: DNA-directed RNA polymerase subunit beta (RPOB) [13]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Rifapentine
Molecule Alteration Missense mutation
p.Q468K
Experimental Note Identified from the Human Clinical Data
In Vitro Model Staphylococcus aureus strain T109 1280
Staphylococcus aureus strain T112 1280
Staphylococcus aureus strain T113 1280
Staphylococcus aureus strain T115 1280
Staphylococcus aureus strain T118 1280
Staphylococcus aureus strain T124 1280
Staphylococcus aureus strain T161 1280
Staphylococcus aureus strain T166 1280
Staphylococcus aureus strain T20 1280
Staphylococcus aureus strain T211 1280
Staphylococcus aureus strain T212 1280
Staphylococcus aureus strain T23 1280
Staphylococcus aureus strain T236 1280
Staphylococcus aureus strain T23aa 1280
Staphylococcus aureus strain T23aac 1280
Staphylococcus aureus strain T23bb 1280
Staphylococcus aureus strain T248 1280
Staphylococcus aureus strain T249 1280
Staphylococcus aureus strain T25 1280
Staphylococcus aureus strain T250 1280
Staphylococcus aureus strain T262 1280
Staphylococcus aureus strain T264 1280
Staphylococcus aureus strain T295 1280
Staphylococcus aureus strain T296 1280
Staphylococcus aureus strain T297 1280
Staphylococcus aureus strain T36 1280
Staphylococcus aureus strain T38 1280
Staphylococcus aureus strain T382 1280
Staphylococcus aureus strain T38aa 1280
Staphylococcus aureus strain T38bb 1280
Staphylococcus aureus strain T397 1280
Staphylococcus aureus strain T398 1280
Staphylococcus aureus strain T399 1280
Staphylococcus aureus strain T4 1280
Staphylococcus aureus strain T400 1280
Staphylococcus aureus strain T401 1280
Staphylococcus aureus strain T402 1280
Staphylococcus aureus strain T403 1280
Staphylococcus aureus strain T404 1280
Staphylococcus aureus strain T46 1280
Staphylococcus aureus strain T59 1280
Staphylococcus aureus strain T66 1280
Experiment for
Molecule Alteration
DNA sequencing assay
Experiment for
Drug Resistance
Agar dilution method assay
Mechanism Description Twelve mutational changes at 10 positions were identified, with 473Ala-Thr representing a new mutation site. New amino acid substitutions, 465Gln-Arg, 466Leu-Ser, 468Gln-Lys, and 477Ala-Thr in cluster I and 527Ile-Met and 529Ser-Leu in cluster II, were described, thereby emphasizing the high variability of these amino acid positions. Codon 481 was mutated on 32 separate occasions, which indicates a central role of this amino acid. All in vivo isolates that demonstrated two or three amino acid changes exhibited high-level resistance. Interestingly enough, all of these isolates showed the mutational change 481His-Asn, which is capable of conferring low-level resistance on its own, thereby indicating a two-step resistance mechanism in vivo to high-level resistance within these isolates. High-level resistance in vivo, however, was not demonstrated to occur through multiple mutations alone. The single amino acid substitution 468Gln-Lys also causes high-level resistance.
Key Molecule: DNA-directed RNA polymerase subunit beta (RPOB) [13]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Rifapentine
Molecule Alteration Missense mutation
p.D471Y
Experimental Note Identified from the Human Clinical Data
In Vitro Model Staphylococcus aureus strain T109 1280
Staphylococcus aureus strain T112 1280
Staphylococcus aureus strain T113 1280
Staphylococcus aureus strain T115 1280
Staphylococcus aureus strain T118 1280
Staphylococcus aureus strain T124 1280
Staphylococcus aureus strain T161 1280
Staphylococcus aureus strain T166 1280
Staphylococcus aureus strain T20 1280
Staphylococcus aureus strain T211 1280
Staphylococcus aureus strain T212 1280
Staphylococcus aureus strain T23 1280
Staphylococcus aureus strain T236 1280
Staphylococcus aureus strain T23aa 1280
Staphylococcus aureus strain T23aac 1280
Staphylococcus aureus strain T23bb 1280
Staphylococcus aureus strain T248 1280
Staphylococcus aureus strain T249 1280
Staphylococcus aureus strain T25 1280
Staphylococcus aureus strain T250 1280
Staphylococcus aureus strain T262 1280
Staphylococcus aureus strain T264 1280
Staphylococcus aureus strain T295 1280
Staphylococcus aureus strain T296 1280
Staphylococcus aureus strain T297 1280
Staphylococcus aureus strain T36 1280
Staphylococcus aureus strain T38 1280
Staphylococcus aureus strain T382 1280
Staphylococcus aureus strain T38aa 1280
Staphylococcus aureus strain T38bb 1280
Staphylococcus aureus strain T397 1280
Staphylococcus aureus strain T398 1280
Staphylococcus aureus strain T399 1280
Staphylococcus aureus strain T4 1280
Staphylococcus aureus strain T400 1280
Staphylococcus aureus strain T401 1280
Staphylococcus aureus strain T402 1280
Staphylococcus aureus strain T403 1280
Staphylococcus aureus strain T404 1280
Staphylococcus aureus strain T46 1280
Staphylococcus aureus strain T59 1280
Staphylococcus aureus strain T66 1280
Experiment for
Molecule Alteration
DNA sequencing assay
Experiment for
Drug Resistance
Agar dilution method assay
Mechanism Description Twelve mutational changes at 10 positions were identified, with 473Ala-Thr representing a new mutation site. New amino acid substitutions, 465Gln-Arg, 466Leu-Ser, 468Gln-Lys, and 477Ala-Thr in cluster I and 527Ile-Met and 529Ser-Leu in cluster II, were described, thereby emphasizing the high variability of these amino acid positions. Codon 481 was mutated on 32 separate occasions, which indicates a central role of this amino acid. All in vivo isolates that demonstrated two or three amino acid changes exhibited high-level resistance. Interestingly enough, all of these isolates showed the mutational change 481His-Asn, which is capable of conferring low-level resistance on its own, thereby indicating a two-step resistance mechanism in vivo to high-level resistance within these isolates. High-level resistance in vivo, however, was not demonstrated to occur through multiple mutations alone. The single amino acid substitution 468Gln-Lys also causes high-level resistance.
Key Molecule: DNA-directed RNA polymerase subunit beta (RPOB) [13]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Rifapentine
Molecule Alteration Missense mutation
p.A477T
Experimental Note Identified from the Human Clinical Data
In Vitro Model Staphylococcus aureus strain T109 1280
Staphylococcus aureus strain T112 1280
Staphylococcus aureus strain T113 1280
Staphylococcus aureus strain T115 1280
Staphylococcus aureus strain T118 1280
Staphylococcus aureus strain T124 1280
Staphylococcus aureus strain T161 1280
Staphylococcus aureus strain T166 1280
Staphylococcus aureus strain T20 1280
Staphylococcus aureus strain T211 1280
Staphylococcus aureus strain T212 1280
Staphylococcus aureus strain T23 1280
Staphylococcus aureus strain T236 1280
Staphylococcus aureus strain T23aa 1280
Staphylococcus aureus strain T23aac 1280
Staphylococcus aureus strain T23bb 1280
Staphylococcus aureus strain T248 1280
Staphylococcus aureus strain T249 1280
Staphylococcus aureus strain T25 1280
Staphylococcus aureus strain T250 1280
Staphylococcus aureus strain T262 1280
Staphylococcus aureus strain T264 1280
Staphylococcus aureus strain T295 1280
Staphylococcus aureus strain T296 1280
Staphylococcus aureus strain T297 1280
Staphylococcus aureus strain T36 1280
Staphylococcus aureus strain T38 1280
Staphylococcus aureus strain T382 1280
Staphylococcus aureus strain T38aa 1280
Staphylococcus aureus strain T38bb 1280
Staphylococcus aureus strain T397 1280
Staphylococcus aureus strain T398 1280
Staphylococcus aureus strain T399 1280
Staphylococcus aureus strain T4 1280
Staphylococcus aureus strain T400 1280
Staphylococcus aureus strain T401 1280
Staphylococcus aureus strain T402 1280
Staphylococcus aureus strain T403 1280
Staphylococcus aureus strain T404 1280
Staphylococcus aureus strain T46 1280
Staphylococcus aureus strain T59 1280
Staphylococcus aureus strain T66 1280
Experiment for
Molecule Alteration
DNA sequencing assay
Experiment for
Drug Resistance
Agar dilution method assay
Mechanism Description Twelve mutational changes at 10 positions were identified, with 473Ala-Thr representing a new mutation site. New amino acid substitutions, 465Gln-Arg, 466Leu-Ser, 468Gln-Lys, and 477Ala-Thr in cluster I and 527Ile-Met and 529Ser-Leu in cluster II, were described, thereby emphasizing the high variability of these amino acid positions. Codon 481 was mutated on 32 separate occasions, which indicates a central role of this amino acid. All in vivo isolates that demonstrated two or three amino acid changes exhibited high-level resistance. Interestingly enough, all of these isolates showed the mutational change 481His-Asn, which is capable of conferring low-level resistance on its own, thereby indicating a two-step resistance mechanism in vivo to high-level resistance within these isolates. High-level resistance in vivo, however, was not demonstrated to occur through multiple mutations alone. The single amino acid substitution 468Gln-Lys also causes high-level resistance.
Key Molecule: DNA-directed RNA polymerase subunit beta (RPOB) [13]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Rifapentine
Molecule Alteration Missense mutation
p.I527M
Experimental Note Identified from the Human Clinical Data
In Vitro Model Staphylococcus aureus strain T109 1280
Staphylococcus aureus strain T112 1280
Staphylococcus aureus strain T113 1280
Staphylococcus aureus strain T115 1280
Staphylococcus aureus strain T118 1280
Staphylococcus aureus strain T124 1280
Staphylococcus aureus strain T161 1280
Staphylococcus aureus strain T166 1280
Staphylococcus aureus strain T20 1280
Staphylococcus aureus strain T211 1280
Staphylococcus aureus strain T212 1280
Staphylococcus aureus strain T23 1280
Staphylococcus aureus strain T236 1280
Staphylococcus aureus strain T23aa 1280
Staphylococcus aureus strain T23aac 1280
Staphylococcus aureus strain T23bb 1280
Staphylococcus aureus strain T248 1280
Staphylococcus aureus strain T249 1280
Staphylococcus aureus strain T25 1280
Staphylococcus aureus strain T250 1280
Staphylococcus aureus strain T262 1280
Staphylococcus aureus strain T264 1280
Staphylococcus aureus strain T295 1280
Staphylococcus aureus strain T296 1280
Staphylococcus aureus strain T297 1280
Staphylococcus aureus strain T36 1280
Staphylococcus aureus strain T38 1280
Staphylococcus aureus strain T382 1280
Staphylococcus aureus strain T38aa 1280
Staphylococcus aureus strain T38bb 1280
Staphylococcus aureus strain T397 1280
Staphylococcus aureus strain T398 1280
Staphylococcus aureus strain T399 1280
Staphylococcus aureus strain T4 1280
Staphylococcus aureus strain T400 1280
Staphylococcus aureus strain T401 1280
Staphylococcus aureus strain T402 1280
Staphylococcus aureus strain T403 1280
Staphylococcus aureus strain T404 1280
Staphylococcus aureus strain T46 1280
Staphylococcus aureus strain T59 1280
Staphylococcus aureus strain T66 1280
Experiment for
Molecule Alteration
DNA sequencing assay
Experiment for
Drug Resistance
Agar dilution method assay
Mechanism Description Twelve mutational changes at 10 positions were identified, with 473Ala-Thr representing a new mutation site. New amino acid substitutions, 465Gln-Arg, 466Leu-Ser, 468Gln-Lys, and 477Ala-Thr in cluster I and 527Ile-Met and 529Ser-Leu in cluster II, were described, thereby emphasizing the high variability of these amino acid positions. Codon 481 was mutated on 32 separate occasions, which indicates a central role of this amino acid. All in vivo isolates that demonstrated two or three amino acid changes exhibited high-level resistance. Interestingly enough, all of these isolates showed the mutational change 481His-Asn, which is capable of conferring low-level resistance on its own, thereby indicating a two-step resistance mechanism in vivo to high-level resistance within these isolates. High-level resistance in vivo, however, was not demonstrated to occur through multiple mutations alone. The single amino acid substitution 468Gln-Lys also causes high-level resistance.
Key Molecule: DNA-directed RNA polymerase subunit beta (RPOB) [13]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Rifapentine
Molecule Alteration Missense mutation
p.S529L
Experimental Note Identified from the Human Clinical Data
In Vitro Model Staphylococcus aureus strain T109 1280
Staphylococcus aureus strain T112 1280
Staphylococcus aureus strain T113 1280
Staphylococcus aureus strain T115 1280
Staphylococcus aureus strain T118 1280
Staphylococcus aureus strain T124 1280
Staphylococcus aureus strain T161 1280
Staphylococcus aureus strain T166 1280
Staphylococcus aureus strain T20 1280
Staphylococcus aureus strain T211 1280
Staphylococcus aureus strain T212 1280
Staphylococcus aureus strain T23 1280
Staphylococcus aureus strain T236 1280
Staphylococcus aureus strain T23aa 1280
Staphylococcus aureus strain T23aac 1280
Staphylococcus aureus strain T23bb 1280
Staphylococcus aureus strain T248 1280
Staphylococcus aureus strain T249 1280
Staphylococcus aureus strain T25 1280
Staphylococcus aureus strain T250 1280
Staphylococcus aureus strain T262 1280
Staphylococcus aureus strain T264 1280
Staphylococcus aureus strain T295 1280
Staphylococcus aureus strain T296 1280
Staphylococcus aureus strain T297 1280
Staphylococcus aureus strain T36 1280
Staphylococcus aureus strain T38 1280
Staphylococcus aureus strain T382 1280
Staphylococcus aureus strain T38aa 1280
Staphylococcus aureus strain T38bb 1280
Staphylococcus aureus strain T397 1280
Staphylococcus aureus strain T398 1280
Staphylococcus aureus strain T399 1280
Staphylococcus aureus strain T4 1280
Staphylococcus aureus strain T400 1280
Staphylococcus aureus strain T401 1280
Staphylococcus aureus strain T402 1280
Staphylococcus aureus strain T403 1280
Staphylococcus aureus strain T404 1280
Staphylococcus aureus strain T46 1280
Staphylococcus aureus strain T59 1280
Staphylococcus aureus strain T66 1280
Experiment for
Molecule Alteration
DNA sequencing assay
Experiment for
Drug Resistance
Agar dilution method assay
Mechanism Description Twelve mutational changes at 10 positions were identified, with 473Ala-Thr representing a new mutation site. New amino acid substitutions, 465Gln-Arg, 466Leu-Ser, 468Gln-Lys, and 477Ala-Thr in cluster I and 527Ile-Met and 529Ser-Leu in cluster II, were described, thereby emphasizing the high variability of these amino acid positions. Codon 481 was mutated on 32 separate occasions, which indicates a central role of this amino acid. All in vivo isolates that demonstrated two or three amino acid changes exhibited high-level resistance. Interestingly enough, all of these isolates showed the mutational change 481His-Asn, which is capable of conferring low-level resistance on its own, thereby indicating a two-step resistance mechanism in vivo to high-level resistance within these isolates. High-level resistance in vivo, however, was not demonstrated to occur through multiple mutations alone. The single amino acid substitution 468Gln-Lys also causes high-level resistance.
Key Molecule: DNA-directed RNA polymerase subunit beta (RPOB) [13]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Rifapentine
Molecule Alteration Missense mutation
p.H481N+p.L466S
Experimental Note Identified from the Human Clinical Data
In Vitro Model Staphylococcus aureus strain T109 1280
Staphylococcus aureus strain T112 1280
Staphylococcus aureus strain T113 1280
Staphylococcus aureus strain T115 1280
Staphylococcus aureus strain T118 1280
Staphylococcus aureus strain T124 1280
Staphylococcus aureus strain T161 1280
Staphylococcus aureus strain T166 1280
Staphylococcus aureus strain T20 1280
Staphylococcus aureus strain T211 1280
Staphylococcus aureus strain T212 1280
Staphylococcus aureus strain T23 1280
Staphylococcus aureus strain T236 1280
Staphylococcus aureus strain T23aa 1280
Staphylococcus aureus strain T23aac 1280
Staphylococcus aureus strain T23bb 1280
Staphylococcus aureus strain T248 1280
Staphylococcus aureus strain T249 1280
Staphylococcus aureus strain T25 1280
Staphylococcus aureus strain T250 1280
Staphylococcus aureus strain T262 1280
Staphylococcus aureus strain T264 1280
Staphylococcus aureus strain T295 1280
Staphylococcus aureus strain T296 1280
Staphylococcus aureus strain T297 1280
Staphylococcus aureus strain T36 1280
Staphylococcus aureus strain T38 1280
Staphylococcus aureus strain T382 1280
Staphylococcus aureus strain T38aa 1280
Staphylococcus aureus strain T38bb 1280
Staphylococcus aureus strain T397 1280
Staphylococcus aureus strain T398 1280
Staphylococcus aureus strain T399 1280
Staphylococcus aureus strain T4 1280
Staphylococcus aureus strain T400 1280
Staphylococcus aureus strain T401 1280
Staphylococcus aureus strain T402 1280
Staphylococcus aureus strain T403 1280
Staphylococcus aureus strain T404 1280
Staphylococcus aureus strain T46 1280
Staphylococcus aureus strain T59 1280
Staphylococcus aureus strain T66 1280
Experiment for
Molecule Alteration
DNA sequencing assay
Experiment for
Drug Resistance
Agar dilution method assay
Mechanism Description Twelve mutational changes at 10 positions were identified, with 473Ala-Thr representing a new mutation site. New amino acid substitutions, 465Gln-Arg, 466Leu-Ser, 468Gln-Lys, and 477Ala-Thr in cluster I and 527Ile-Met and 529Ser-Leu in cluster II, were described, thereby emphasizing the high variability of these amino acid positions. Codon 481 was mutated on 32 separate occasions, which indicates a central role of this amino acid. All in vivo isolates that demonstrated two or three amino acid changes exhibited high-level resistance. Interestingly enough, all of these isolates showed the mutational change 481His-Asn, which is capable of conferring low-level resistance on its own, thereby indicating a two-step resistance mechanism in vivo to high-level resistance within these isolates. High-level resistance in vivo, however, was not demonstrated to occur through multiple mutations alone. The single amino acid substitution 468Gln-Lys also causes high-level resistance.
Key Molecule: DNA-directed RNA polymerase subunit beta (RPOB) [13]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Rifapentine
Molecule Alteration Missense mutation
p.H481N+p.S529L
Experimental Note Identified from the Human Clinical Data
In Vitro Model Staphylococcus aureus strain T109 1280
Staphylococcus aureus strain T112 1280
Staphylococcus aureus strain T113 1280
Staphylococcus aureus strain T115 1280
Staphylococcus aureus strain T118 1280
Staphylococcus aureus strain T124 1280
Staphylococcus aureus strain T161 1280
Staphylococcus aureus strain T166 1280
Staphylococcus aureus strain T20 1280
Staphylococcus aureus strain T211 1280
Staphylococcus aureus strain T212 1280
Staphylococcus aureus strain T23 1280
Staphylococcus aureus strain T236 1280
Staphylococcus aureus strain T23aa 1280
Staphylococcus aureus strain T23aac 1280
Staphylococcus aureus strain T23bb 1280
Staphylococcus aureus strain T248 1280
Staphylococcus aureus strain T249 1280
Staphylococcus aureus strain T25 1280
Staphylococcus aureus strain T250 1280
Staphylococcus aureus strain T262 1280
Staphylococcus aureus strain T264 1280
Staphylococcus aureus strain T295 1280
Staphylococcus aureus strain T296 1280
Staphylococcus aureus strain T297 1280
Staphylococcus aureus strain T36 1280
Staphylococcus aureus strain T38 1280
Staphylococcus aureus strain T382 1280
Staphylococcus aureus strain T38aa 1280
Staphylococcus aureus strain T38bb 1280
Staphylococcus aureus strain T397 1280
Staphylococcus aureus strain T398 1280
Staphylococcus aureus strain T399 1280
Staphylococcus aureus strain T4 1280
Staphylococcus aureus strain T400 1280
Staphylococcus aureus strain T401 1280
Staphylococcus aureus strain T402 1280
Staphylococcus aureus strain T403 1280
Staphylococcus aureus strain T404 1280
Staphylococcus aureus strain T46 1280
Staphylococcus aureus strain T59 1280
Staphylococcus aureus strain T66 1280
Experiment for
Molecule Alteration
DNA sequencing assay
Experiment for
Drug Resistance
Agar dilution method assay
Mechanism Description Twelve mutational changes at 10 positions were identified, with 473Ala-Thr representing a new mutation site. New amino acid substitutions, 465Gln-Arg, 466Leu-Ser, 468Gln-Lys, and 477Ala-Thr in cluster I and 527Ile-Met and 529Ser-Leu in cluster II, were described, thereby emphasizing the high variability of these amino acid positions. Codon 481 was mutated on 32 separate occasions, which indicates a central role of this amino acid. All in vivo isolates that demonstrated two or three amino acid changes exhibited high-level resistance. Interestingly enough, all of these isolates showed the mutational change 481His-Asn, which is capable of conferring low-level resistance on its own, thereby indicating a two-step resistance mechanism in vivo to high-level resistance within these isolates. High-level resistance in vivo, however, was not demonstrated to occur through multiple mutations alone. The single amino acid substitution 468Gln-Lys also causes high-level resistance.
Key Molecule: DNA-directed RNA polymerase subunit beta (RPOB) [13]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Rifapentine
Molecule Alteration Missense mutation
p.H481N+p.I527M
Experimental Note Identified from the Human Clinical Data
In Vitro Model Staphylococcus aureus strain T109 1280
Staphylococcus aureus strain T112 1280
Staphylococcus aureus strain T113 1280
Staphylococcus aureus strain T115 1280
Staphylococcus aureus strain T118 1280
Staphylococcus aureus strain T124 1280
Staphylococcus aureus strain T161 1280
Staphylococcus aureus strain T166 1280
Staphylococcus aureus strain T20 1280
Staphylococcus aureus strain T211 1280
Staphylococcus aureus strain T212 1280
Staphylococcus aureus strain T23 1280
Staphylococcus aureus strain T236 1280
Staphylococcus aureus strain T23aa 1280
Staphylococcus aureus strain T23aac 1280
Staphylococcus aureus strain T23bb 1280
Staphylococcus aureus strain T248 1280
Staphylococcus aureus strain T249 1280
Staphylococcus aureus strain T25 1280
Staphylococcus aureus strain T250 1280
Staphylococcus aureus strain T262 1280
Staphylococcus aureus strain T264 1280
Staphylococcus aureus strain T295 1280
Staphylococcus aureus strain T296 1280
Staphylococcus aureus strain T297 1280
Staphylococcus aureus strain T36 1280
Staphylococcus aureus strain T38 1280
Staphylococcus aureus strain T382 1280
Staphylococcus aureus strain T38aa 1280
Staphylococcus aureus strain T38bb 1280
Staphylococcus aureus strain T397 1280
Staphylococcus aureus strain T398 1280
Staphylococcus aureus strain T399 1280
Staphylococcus aureus strain T4 1280
Staphylococcus aureus strain T400 1280
Staphylococcus aureus strain T401 1280
Staphylococcus aureus strain T402 1280
Staphylococcus aureus strain T403 1280
Staphylococcus aureus strain T404 1280
Staphylococcus aureus strain T46 1280
Staphylococcus aureus strain T59 1280
Staphylococcus aureus strain T66 1280
Experiment for
Molecule Alteration
DNA sequencing assay
Experiment for
Drug Resistance
Agar dilution method assay
Mechanism Description Twelve mutational changes at 10 positions were identified, with 473Ala-Thr representing a new mutation site. New amino acid substitutions, 465Gln-Arg, 466Leu-Ser, 468Gln-Lys, and 477Ala-Thr in cluster I and 527Ile-Met and 529Ser-Leu in cluster II, were described, thereby emphasizing the high variability of these amino acid positions. Codon 481 was mutated on 32 separate occasions, which indicates a central role of this amino acid. All in vivo isolates that demonstrated two or three amino acid changes exhibited high-level resistance. Interestingly enough, all of these isolates showed the mutational change 481His-Asn, which is capable of conferring low-level resistance on its own, thereby indicating a two-step resistance mechanism in vivo to high-level resistance within these isolates. High-level resistance in vivo, however, was not demonstrated to occur through multiple mutations alone. The single amino acid substitution 468Gln-Lys also causes high-level resistance.
Key Molecule: DNA-directed RNA polymerase subunit beta (RPOB) [13]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Rifapentine
Molecule Alteration Missense mutation
p.H481N+p.S529L+p.Q465R
Experimental Note Identified from the Human Clinical Data
In Vitro Model Staphylococcus aureus strain T109 1280
Staphylococcus aureus strain T112 1280
Staphylococcus aureus strain T113 1280
Staphylococcus aureus strain T115 1280
Staphylococcus aureus strain T118 1280
Staphylococcus aureus strain T124 1280
Staphylococcus aureus strain T161 1280
Staphylococcus aureus strain T166 1280
Staphylococcus aureus strain T20 1280
Staphylococcus aureus strain T211 1280
Staphylococcus aureus strain T212 1280
Staphylococcus aureus strain T23 1280
Staphylococcus aureus strain T236 1280
Staphylococcus aureus strain T23aa 1280
Staphylococcus aureus strain T23aac 1280
Staphylococcus aureus strain T23bb 1280
Staphylococcus aureus strain T248 1280
Staphylococcus aureus strain T249 1280
Staphylococcus aureus strain T25 1280
Staphylococcus aureus strain T250 1280
Staphylococcus aureus strain T262 1280
Staphylococcus aureus strain T264 1280
Staphylococcus aureus strain T295 1280
Staphylococcus aureus strain T296 1280
Staphylococcus aureus strain T297 1280
Staphylococcus aureus strain T36 1280
Staphylococcus aureus strain T38 1280
Staphylococcus aureus strain T382 1280
Staphylococcus aureus strain T38aa 1280
Staphylococcus aureus strain T38bb 1280
Staphylococcus aureus strain T397 1280
Staphylococcus aureus strain T398 1280
Staphylococcus aureus strain T399 1280
Staphylococcus aureus strain T4 1280
Staphylococcus aureus strain T400 1280
Staphylococcus aureus strain T401 1280
Staphylococcus aureus strain T402 1280
Staphylococcus aureus strain T403 1280
Staphylococcus aureus strain T404 1280
Staphylococcus aureus strain T46 1280
Staphylococcus aureus strain T59 1280
Staphylococcus aureus strain T66 1280
Experiment for
Molecule Alteration
DNA sequencing assay
Experiment for
Drug Resistance
Agar dilution method assay
Mechanism Description Twelve mutational changes at 10 positions were identified, with 473Ala-Thr representing a new mutation site. New amino acid substitutions, 465Gln-Arg, 466Leu-Ser, 468Gln-Lys, and 477Ala-Thr in cluster I and 527Ile-Met and 529Ser-Leu in cluster II, were described, thereby emphasizing the high variability of these amino acid positions. Codon 481 was mutated on 32 separate occasions, which indicates a central role of this amino acid. All in vivo isolates that demonstrated two or three amino acid changes exhibited high-level resistance. Interestingly enough, all of these isolates showed the mutational change 481His-Asn, which is capable of conferring low-level resistance on its own, thereby indicating a two-step resistance mechanism in vivo to high-level resistance within these isolates. High-level resistance in vivo, however, was not demonstrated to occur through multiple mutations alone. The single amino acid substitution 468Gln-Lys also causes high-level resistance.
Key Molecule: DNA-directed RNA polymerase subunit beta (RPOB) [13]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Rifapentine
Molecule Alteration Missense mutation
p.H481N+p.A473T+p.A477T
Experimental Note Identified from the Human Clinical Data
In Vitro Model Staphylococcus aureus strain T109 1280
Staphylococcus aureus strain T112 1280
Staphylococcus aureus strain T113 1280
Staphylococcus aureus strain T115 1280
Staphylococcus aureus strain T118 1280
Staphylococcus aureus strain T124 1280
Staphylococcus aureus strain T161 1280
Staphylococcus aureus strain T166 1280
Staphylococcus aureus strain T20 1280
Staphylococcus aureus strain T211 1280
Staphylococcus aureus strain T212 1280
Staphylococcus aureus strain T23 1280
Staphylococcus aureus strain T236 1280
Staphylococcus aureus strain T23aa 1280
Staphylococcus aureus strain T23aac 1280
Staphylococcus aureus strain T23bb 1280
Staphylococcus aureus strain T248 1280
Staphylococcus aureus strain T249 1280
Staphylococcus aureus strain T25 1280
Staphylococcus aureus strain T250 1280
Staphylococcus aureus strain T262 1280
Staphylococcus aureus strain T264 1280
Staphylococcus aureus strain T295 1280
Staphylococcus aureus strain T296 1280
Staphylococcus aureus strain T297 1280
Staphylococcus aureus strain T36 1280
Staphylococcus aureus strain T38 1280
Staphylococcus aureus strain T382 1280
Staphylococcus aureus strain T38aa 1280
Staphylococcus aureus strain T38bb 1280
Staphylococcus aureus strain T397 1280
Staphylococcus aureus strain T398 1280
Staphylococcus aureus strain T399 1280
Staphylococcus aureus strain T4 1280
Staphylococcus aureus strain T400 1280
Staphylococcus aureus strain T401 1280
Staphylococcus aureus strain T402 1280
Staphylococcus aureus strain T403 1280
Staphylococcus aureus strain T404 1280
Staphylococcus aureus strain T46 1280
Staphylococcus aureus strain T59 1280
Staphylococcus aureus strain T66 1280
Experiment for
Molecule Alteration
DNA sequencing assay
Experiment for
Drug Resistance
Agar dilution method assay
Mechanism Description Twelve mutational changes at 10 positions were identified, with 473Ala-Thr representing a new mutation site. New amino acid substitutions, 465Gln-Arg, 466Leu-Ser, 468Gln-Lys, and 477Ala-Thr in cluster I and 527Ile-Met and 529Ser-Leu in cluster II, were described, thereby emphasizing the high variability of these amino acid positions. Codon 481 was mutated on 32 separate occasions, which indicates a central role of this amino acid. All in vivo isolates that demonstrated two or three amino acid changes exhibited high-level resistance. Interestingly enough, all of these isolates showed the mutational change 481His-Asn, which is capable of conferring low-level resistance on its own, thereby indicating a two-step resistance mechanism in vivo to high-level resistance within these isolates. High-level resistance in vivo, however, was not demonstrated to occur through multiple mutations alone. The single amino acid substitution 468Gln-Lys also causes high-level resistance.
Key Molecule: DNA-directed RNA polymerase subunit beta (RPOB) [13]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Rifapentine
Molecule Alteration Missense mutation
p.D471Y+p.S486L
Experimental Note Identified from the Human Clinical Data
In Vitro Model Staphylococcus aureus strain T109 1280
Staphylococcus aureus strain T112 1280
Staphylococcus aureus strain T113 1280
Staphylococcus aureus strain T115 1280
Staphylococcus aureus strain T118 1280
Staphylococcus aureus strain T124 1280
Staphylococcus aureus strain T161 1280
Staphylococcus aureus strain T166 1280
Staphylococcus aureus strain T20 1280
Staphylococcus aureus strain T211 1280
Staphylococcus aureus strain T212 1280
Staphylococcus aureus strain T23 1280
Staphylococcus aureus strain T236 1280
Staphylococcus aureus strain T23aa 1280
Staphylococcus aureus strain T23aac 1280
Staphylococcus aureus strain T23bb 1280
Staphylococcus aureus strain T248 1280
Staphylococcus aureus strain T249 1280
Staphylococcus aureus strain T25 1280
Staphylococcus aureus strain T250 1280
Staphylococcus aureus strain T262 1280
Staphylococcus aureus strain T264 1280
Staphylococcus aureus strain T295 1280
Staphylococcus aureus strain T296 1280
Staphylococcus aureus strain T297 1280
Staphylococcus aureus strain T36 1280
Staphylococcus aureus strain T38 1280
Staphylococcus aureus strain T382 1280
Staphylococcus aureus strain T38aa 1280
Staphylococcus aureus strain T38bb 1280
Staphylococcus aureus strain T397 1280
Staphylococcus aureus strain T398 1280
Staphylococcus aureus strain T399 1280
Staphylococcus aureus strain T4 1280
Staphylococcus aureus strain T400 1280
Staphylococcus aureus strain T401 1280
Staphylococcus aureus strain T402 1280
Staphylococcus aureus strain T403 1280
Staphylococcus aureus strain T404 1280
Staphylococcus aureus strain T46 1280
Staphylococcus aureus strain T59 1280
Staphylococcus aureus strain T66 1280
Experiment for
Molecule Alteration
DNA sequencing assay
Experiment for
Drug Resistance
Agar dilution method assay
Mechanism Description Twelve mutational changes at 10 positions were identified, with 473Ala-Thr representing a new mutation site. New amino acid substitutions, 465Gln-Arg, 466Leu-Ser, 468Gln-Lys, and 477Ala-Thr in cluster I and 527Ile-Met and 529Ser-Leu in cluster II, were described, thereby emphasizing the high variability of these amino acid positions. Codon 481 was mutated on 32 separate occasions, which indicates a central role of this amino acid. All in vivo isolates that demonstrated two or three amino acid changes exhibited high-level resistance. Interestingly enough, all of these isolates showed the mutational change 481His-Asn, which is capable of conferring low-level resistance on its own, thereby indicating a two-step resistance mechanism in vivo to high-level resistance within these isolates. High-level resistance in vivo, however, was not demonstrated to occur through multiple mutations alone. The single amino acid substitution 468Gln-Lys also causes high-level resistance.
Sparfloxacin
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Drug Resistance Data Categorized by Their Corresponding Mechanisms
  Irregularity in Drug Uptake and Drug Efflux (IDUE) Click to Show/Hide
Key Molecule: Quinolone resistance protein NorB (NORB) [6]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Sparfloxacin
Molecule Alteration Expression
Up-regulation
Experimental Note Identified from the Human Clinical Data
In Vitro Model Escherichia coli 668369
Experiment for
Molecule Alteration
DNA microarray hybridization assay
Experiment for
Drug Resistance
Serial twofold agar dilutions assay
Mechanism Description MgrA was an indirect regulator of norB expression. The mgrA norB double mutant was reproducibly twofold more susceptible to the tested quinolones than the mgrA mutant.
  Unusual Activation of Pro-survival Pathway (UAPP) Click to Show/Hide
Key Molecule: HTH-type transcriptional regulator MgrA (MGRA) [6]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Sparfloxacin
Molecule Alteration Expression
Up-regulation
Experimental Note Identified from the Human Clinical Data
In Vitro Model Escherichia coli 668369
Experiment for
Molecule Alteration
DNA microarray hybridization assay
Experiment for
Drug Resistance
Serial twofold agar dilutions assay
Mechanism Description MgrA was an indirect regulator of norB expression. The mgrA norB double mutant was reproducibly twofold more susceptible to the tested quinolones than the mgrA mutant.
Tetracycline
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Drug Resistance Data Categorized by Their Corresponding Mechanisms
  Irregularity in Drug Uptake and Drug Efflux (IDUE) Click to Show/Hide
Key Molecule: Tetracycline efflux MFS transporter Tet(38) (TET38) [6]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Tetracycline
Molecule Alteration Expression
Up-regulation
Experimental Note Identified from the Human Clinical Data
In Vitro Model Escherichia coli 668369
Experiment for
Molecule Alteration
DNA microarray hybridization assay
Experiment for
Drug Resistance
Serial twofold agar dilutions assay
Mechanism Description MgrA was an indirect regulator of tet38 expression. The mgrA tet38 double mutant became more susceptible to tetracycline than the wild-type parent strain.
  Unusual Activation of Pro-survival Pathway (UAPP) Click to Show/Hide
Key Molecule: HTH-type transcriptional regulator MgrA (MGRA) [6]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Tetracycline
Molecule Alteration Expression
Up-regulation
Experimental Note Identified from the Human Clinical Data
In Vitro Model Escherichia coli 668369
Experiment for
Molecule Alteration
DNA microarray hybridization assay
Experiment for
Drug Resistance
Serial twofold agar dilutions assay
Mechanism Description MgrA was an indirect regulator of tet38 expression. The mgrA tet38 double mutant became more susceptible to tetracycline than the wild-type parent strain.
Vancomycin
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Drug Resistance Data Categorized by Their Corresponding Mechanisms
  Unusual Activation of Pro-survival Pathway (UAPP) Click to Show/Hide
Key Molecule: Phosphatidylglycerol lysyltransferase (MPREF) [9]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Vancomycin
Molecule Alteration Expression
Inherence
Experimental Note Identified from the Human Clinical Data
In Vitro Model Escherichia coli BL21(DE3) 469008
Experiment for
Molecule Alteration
TLC and Western blot analysis
Experiment for
Drug Resistance
Epsilometer test (E test) assay
Mechanism Description MprF does not only synthesize Lys-PG but also accomplishes translocation of Lys-PG from the inner to the outer surface of the membrane. Lys-PG mediates CAMP resistance by repulsing the cationic peptides from the outer surface of the membrane.
Clinical Trial Drug(s)
2 drug(s) in total
Click to Show/Hide the Full List of Drugs
Pristinamycin IA
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Drug Resistance Data Categorized by Their Corresponding Mechanisms
  Aberration of the Drug's Therapeutic Target (ADTT) Click to Show/Hide
Key Molecule: Erythromycin resistance protein (ERM33) [11]
Resistant Disease Staphylococcus sciuri infection [ICD-11: 1B54.1]
Resistant Drug Pristinamycin IA
Molecule Alteration Expression
Gene recombination
Experimental Note Identified from the Human Clinical Data
In Vitro Model Staphylococcus sciuri plasmid pSCFS1 1296
Experiment for
Molecule Alteration
Sequence analysis
Experiment for
Drug Resistance
MIC assay
Mechanism Description Staphylococcus sciuri Gene erm(33), Encoding Inducible Resistance to Macrolides, Lincosamides, and Streptogramin B Antibiotics, Is a Product of Recombination between erm(C) and erm(A).
Cetrimide
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Drug Resistance Data Categorized by Their Corresponding Mechanisms
  Irregularity in Drug Uptake and Drug Efflux (IDUE) Click to Show/Hide
Key Molecule: Quinolone resistance protein NorB (NORB) [6]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Cetrimide
Molecule Alteration Expression
Up-regulation
Experimental Note Identified from the Human Clinical Data
In Vitro Model Escherichia coli 668369
Experiment for
Molecule Alteration
DNA microarray hybridization assay
Experiment for
Drug Resistance
Serial twofold agar dilutions assay
Mechanism Description MgrA was an indirect regulator of norB expression. The mgrA norB double mutant was reproducibly twofold more susceptible to the tested quinolones than the mgrA mutant.
  Unusual Activation of Pro-survival Pathway (UAPP) Click to Show/Hide
Key Molecule: HTH-type transcriptional regulator MgrA (MGRA) [6]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Cetrimide
Molecule Alteration Expression
Up-regulation
Experimental Note Identified from the Human Clinical Data
In Vitro Model Escherichia coli 668369
Experiment for
Molecule Alteration
DNA microarray hybridization assay
Experiment for
Drug Resistance
Serial twofold agar dilutions assay
Mechanism Description MgrA was an indirect regulator of norB expression. The mgrA norB double mutant was reproducibly twofold more susceptible to the tested quinolones than the mgrA mutant.
Investigative Drug(s)
8 drug(s) in total
Click to Show/Hide the Full List of Drugs
Alpha-Mangostin-4
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Drug Sensitivity Data Categorized by Their Corresponding Mechanisms
  Irregularity in Drug Uptake and Drug Efflux (IDUE) Click to Show/Hide
Key Molecule: Multiple efflux pumps MepA and NorA [14]
Sensitive Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Sensitive Drug Alpha-Mangostin-4
Molecule Alteration Expression
Down-regulation
Experimental Note Revealed Based on the Cell Line Data
Cell Pathway Regulation Efflux pumps of MRSA2 signaling pathway Regulation N.A.
In Vitro Model Male SPF-grade ICR mice 5833
Methicillin-resistant Staphylococcus aureus 5833
Experiment for
Molecule Alteration
SEM assay; TEM assay; EtBr accumulation assay; qRT-PCR; Western blot assay; Bocillin FL PBP binding assay; beta-Lactamase activity assay
Experiment for
Drug Resistance
MIC assay; Time-Kill assay; Hemolytic activity assay; Cytotoxicity assay
Mechanism Description In this study, potential agents to combat MRSA resistance were explored, with the antibacterial activity of synthesized alpha-mangostin (alpha-MG) derivatives being evaluated alongside investigations into their cellular mechanisms against MRSA2. alpha-MG-4, featuring an allyl group at C3 of the lead compound alpha-MG, restored the sensitivity of MRSA2 to penicillin, enrofloxacin, and gentamicin, while also demonstrating improved safety profiles. Although alpha-MG-4 alone was ineffective against MRSA2, it exhibited an optimal synergistic ratio in vitro when combined with these antibiotics. This significant synergistic antibacterial effect was further confirmed in vivo using a mouse skin abscess model. Additionally, the synergistic mechanisms revealed that alpha-MG-4 was associated with changes in membrane permeability and inhibition of the MepA and NorA genes, which encode the efflux pumps of MRSA2. alpha-MG-4 also inhibited PBP2a expression, potentially by occupying a crucial binding site in a dose-dependent manner.IMPORTANCEMethicillin-resistant Staphylococcus aureus (MRSA)'s resistance to multiple antibiotics poses significant health and safety concerns. A novel alpha-mangostin (alpha-MG) derivative, alpha-MG-4, was first identified as a xanthone-based PBP2a inhibitor that reverses MRSA2 resistance to penicillin. The synergistic antibacterial effects of alpha-MG-4 were linked to increased cell membrane permeability and the inhibition of genes involved in efflux pump function.
Homidium bromide
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Drug Resistance Data Categorized by Their Corresponding Mechanisms
  Irregularity in Drug Uptake and Drug Efflux (IDUE) Click to Show/Hide
Key Molecule: Quinolone resistance protein NorB (NORB) [6]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Homidium bromide
Molecule Alteration Expression
Up-regulation
Experimental Note Identified from the Human Clinical Data
In Vitro Model Escherichia coli 668369
Experiment for
Molecule Alteration
DNA microarray hybridization assay
Experiment for
Drug Resistance
Serial twofold agar dilutions assay
Mechanism Description MgrA was an indirect regulator of norB expression. The mgrA norB double mutant was reproducibly twofold more susceptible to the tested quinolones than the mgrA mutant.
  Unusual Activation of Pro-survival Pathway (UAPP) Click to Show/Hide
Key Molecule: HTH-type transcriptional regulator MgrA (MGRA) [6]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Homidium bromide
Molecule Alteration Expression
Up-regulation
Experimental Note Identified from the Human Clinical Data
In Vitro Model Escherichia coli 668369
Experiment for
Molecule Alteration
DNA microarray hybridization assay
Experiment for
Drug Resistance
Serial twofold agar dilutions assay
Mechanism Description MgrA was an indirect regulator of norB expression. The mgrA norB double mutant was reproducibly twofold more susceptible to the tested quinolones than the mgrA mutant.
Lincosamides
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Drug Resistance Data Categorized by Their Corresponding Mechanisms
  Aberration of the Drug's Therapeutic Target (ADTT) Click to Show/Hide
Key Molecule: Erythromycin resistance protein (ERM33) [11]
Resistant Disease Staphylococcus sciuri infection [ICD-11: 1B54.1]
Resistant Drug Lincosamides
Molecule Alteration Expression
Gene recombination
Experimental Note Identified from the Human Clinical Data
In Vitro Model Staphylococcus sciuri plasmid pSCFS1 1296
Experiment for
Molecule Alteration
Sequence analysis
Experiment for
Drug Resistance
MIC assay
Mechanism Description Staphylococcus sciuri Gene erm(33), Encoding Inducible Resistance to Macrolides, Lincosamides, and Streptogramin B Antibiotics, Is a Product of Recombination between erm(C) and erm(A).
MA-D1
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Drug Sensitivity Data Categorized by Their Corresponding Mechanisms
  Aberration of the Drug's Therapeutic Target (ADTT) Click to Show/Hide
Key Molecule: Glucosamine-fructose-6-phosphate aminotransferase (GlmS) [15]
Sensitive Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Sensitive Drug MA-D1
Molecule Alteration Expression
Down-regulation
Experimental Note Revealed Based on the Cell Line Data
In Vitro Model Methicillin-resistant Staphylococcus aureus 5833
BABL/C female mice 5833
Experiment for
Molecule Alteration
Gel-based protein profiling assay; MS analysis; Enzymatic activity assay; Thermal shift assay; SPR assay; RNA isolation assay; RT-PCR
Experiment for
Drug Resistance
Resistance development assay; Hemolysis assay; Cytotoxicity assay
Mechanism Description Marinopyrrole A derivative MA-D1 shows anti-MRSA activity by targeting GlmS to inhibit cell wall biosynthesis. This discovery provides a novel target and a lead for developing new antibiotics.
Midecamycin
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Drug Resistance Data Categorized by Their Corresponding Mechanisms
  Drug Inactivation by Structure Modification (DISM) Click to Show/Hide
Key Molecule: Oleandomycin glycosyltransferase oleD (OLED) [16]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Midecamycin
Molecule Alteration Expression
Acquired
Experimental Note Discovered Using In-vivo Testing Model
In Vitro Model Pseudomonas aeruginosa strain B-2099/18 287
Experiment for
Molecule Alteration
SDS-PAGE analysis
Experiment for
Drug Resistance
Broth microdilution antifungal susceptibility test assay
Moenomycin
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Drug Resistance Data Categorized by Their Corresponding Mechanisms
  Unusual Activation of Pro-survival Pathway (UAPP) Click to Show/Hide
Key Molecule: Phosphatidylglycerol lysyltransferase (MPREF) [9]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Moenomycin
Molecule Alteration Expression
Inherence
Experimental Note Identified from the Human Clinical Data
In Vitro Model Escherichia coli BL21(DE3) 469008
Experiment for
Molecule Alteration
TLC and Western blot analysis
Experiment for
Drug Resistance
Epsilometer test (E test) assay
Mechanism Description MprF does not only synthesize Lys-PG but also accomplishes translocation of Lys-PG from the inner to the outer surface of the membrane. Lys-PG mediates CAMP resistance by repulsing the cationic peptides from the outer surface of the membrane.
Quinolones
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Drug Resistance Data Categorized by Their Corresponding Mechanisms
  Irregularity in Drug Uptake and Drug Efflux (IDUE) Click to Show/Hide
Key Molecule: Quinolone resistance protein NorB (NORB) [6]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Quinolones
Molecule Alteration Expression
Up-regulation
Experimental Note Identified from the Human Clinical Data
In Vitro Model Escherichia coli 668369
Experiment for
Molecule Alteration
DNA microarray hybridization assay
Experiment for
Drug Resistance
Serial twofold agar dilutions assay
Mechanism Description MgrA was an indirect regulator of norB expression. The mgrA norB double mutant was reproducibly twofold more susceptible to the tested quinolones than the mgrA mutant.
  Unusual Activation of Pro-survival Pathway (UAPP) Click to Show/Hide
Key Molecule: HTH-type transcriptional regulator MgrA (MGRA) [6]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Quinolones
Molecule Alteration Expression
Up-regulation
Experimental Note Identified from the Human Clinical Data
In Vitro Model Escherichia coli 668369
Experiment for
Molecule Alteration
DNA microarray hybridization assay
Experiment for
Drug Resistance
Serial twofold agar dilutions assay
Mechanism Description MgrA was an indirect regulator of norB expression. The mgrA norB double mutant was reproducibly twofold more susceptible to the tested quinolones than the mgrA mutant.
Quinupristin/Dalfopristin
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Drug Resistance Data Categorized by Their Corresponding Mechanisms
  Drug Inactivation by Structure Modification (DISM) Click to Show/Hide
Key Molecule: Virginiamycin B lyase (VGBB) [17]
Resistant Disease Staphylococcus aureus infection [ICD-11: 1B54.0]
Resistant Drug Quinupristin/Dalfopristin
Molecule Alteration Expression
Inherence
Experimental Note Identified from the Human Clinical Data
In Vitro Model Escherichia coli BL21(DE3) 469008
Experiment for
Molecule Alteration
PCR amplification and sequence alignments assay
Experiment for
Drug Resistance
Spectrophotometric and fluorometric assay
Mechanism Description Virginiamycin B lyase (Vgb) inactivates the quinupristin component of Synercid by lactone ring opening and the enzyme promotes this reaction by intramolecular Beta-elimination without the involvement of a water molecule. Replacement of the conserved active site residues His228, Glu268, or His270 with alanine reduces or abolishes S. cohnii Vgb activity. Residue Lys285 in S. cohnii Vgb is spatially equivalent to the S. aureus Vgb active site residue Glu284.
References
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Ref 2 Role of tcaA, a potential target as a ceftobiprole resistance breaker in MRSA beta-lactam resistance. Int J Antimicrob Agents. 2024 Jul;64(1):107185.
Ref 3 Quinic acid enhances kanamycin efficacy against methicillin-resistant Staphylococcus aureus biofilms. Microb Pathog. 2025 Jan;198:107145.
Ref 4 Study of heterogeneity of chloramphenicol acetyltransferase (CAT) genes in streptococci and enterococci by polymerase chain reaction: characterization of a new CAT determinant. Antimicrob Agents Chemother. 1993 Dec;37(12):2593-8. doi: 10.1128/AAC.37.12.2593.
Ref 5 Cloning and sequence analysis of a plasmid-encoded chloramphenicol acetyltransferase gene from Staphylococcus intermedius. J Gen Microbiol. 1991 Apr;137(4):977-81. doi: 10.1099/00221287-137-4-977.
Ref 6 MgrA is a multiple regulator of two new efflux pumps in Staphylococcus aureus. J Bacteriol. 2005 Apr;187(7):2395-405. doi: 10.1128/JB.187.7.2395-2405.2005.
Ref 7 Nucleotide sequence and characterization of the Staphylococcus aureus norA gene, which confers resistance to quinolones. J Bacteriol. 1990 Dec;172(12):6942-9. doi: 10.1128/jb.172.12.6942-6949.1990.
Ref 8 Whole genome characterization of the mechanisms of daptomycin resistance in clinical and laboratory derived isolates of Staphylococcus aureus. PLoS One. 2012;7(1):e28316. doi: 10.1371/journal.pone.0028316. Epub 2012 Jan 6.
Ref 9 The bacterial defensin resistance protein MprF consists of separable domains for lipid lysinylation and antimicrobial peptide repulsion. PLoS Pathog. 2009 Nov;5(11):e1000660. doi: 10.1371/journal.ppat.1000660. Epub 2009 Nov 13.
Ref 10 Diclofenac Resensitizes Methicillin-Resistant Staphylococcus aureus to Beta-Lactams and Prevents Implant Infections .Adv Sci (Weinh). 2021 May 3;8(13):2100681. doi: 10.1002/advs.202100681. eCollection 2021 Jul. 10.1002/advs.202100681
Ref 11 Staphylococcus sciuri gene erm(33), encoding inducible resistance to macrolides, lincosamides, and streptogramin B antibiotics, is a product of recombination between erm(C) and erm(A). Antimicrob Agents Chemother. 2002 Nov;46(11):3621-3. doi: 10.1128/AAC.46.11.3621-3623.2002.
Ref 12 Accumulation of mutations in both gyrB and parE genes is associated with high-level resistance to novobiocin in Staphylococcus aureus. Antimicrob Agents Chemother. 2005 Sep;49(9):3810-5. doi: 10.1128/AAC.49.9.3810-3815.2005.
Ref 13 Molecular characterization of rpoB mutations conferring cross-resistance to rifamycins on methicillin-resistant Staphylococcus aureus. Antimicrob Agents Chemother. 1999 Nov;43(11):2813-6. doi: 10.1128/AAC.43.11.2813.
Ref 14 A novel alpha-mangostin derivative synergistic to antibiotics against MRSA with unique mechanisms. Microbiol Spectr. 2024 Nov 7;12(12):e0163124.
Ref 15 An Optimized Marinopyrrole A Derivative Targets 6-Phosphoglucosamine Synthetase to Inhibit Methicillin-Resistant Staphylococcus aureus. ACS Cent Sci. 2024 Oct 25;10(11):2090-2098.
Ref 16 Midecamycin Is Inactivated by Several Different Sugar Moieties at Its Inactivation Site .Int J Mol Sci. 2021 Nov 23;22(23):12636. doi: 10.3390/ijms222312636. 10.3390/ijms222312636
Ref 17 Crystal structure and mechanism of the Staphylococcus cohnii virginiamycin B lyase (Vgb). Biochemistry. 2008 Apr 8;47(14):4257-65. doi: 10.1021/bi7015266. Epub 2008 Mar 15.

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