Drug Information

Drug (ID: DG00454) and It's Reported Resistant Information

• Name: 6'-N-Ethylnetilmicin
• Synonyms: 6'-N-Ethylnetilmicin
• Drug Resistance Disease(s):
  Disease(s) with Clinically Reported Resistance for This Drug (1 diseases)
  Mycobacterial diseases [ICD-11: 1B2Z ]; [1]
  Disease(s) with Resistance Information Validated by in-vivo Model for This Drug (1 diseases)
  Escherichia coli intestinal infection [ICD-11: 1A03]; [2]
• Formula: C23H45N5O7
• IsoSMILES: CCNCC1=CC[C@H]([C@H](O1)O[C@@H]2[C@H](C[C@H]([C@@H]([C@H]2O)O[C@@H]3[C@@H]([C@H]([C@@](CO3)(C)O)NC)O)NCC)N)N
• InChI: 1S/C23H45N5O7/c1-5-27-10-12-7-8-13(24)21(33-12)34-18-14(25)9-15(28-6-2)19(16(18)29)35-22-17(30)20(26-4)23(3,31)11-32-22/h7,13-22,26-31H,5-6,8-11,24-25H2,1-4H3/t13-,14+,15-,16+,17-,18-,19+,20-,21-,22-,23+/m1/s1
• InChIKey: RZXCDENQJDMFQY-OLUUFXIRSA-N
• PubChem CID: 15344654

Type(s) of Resistant Mechanism of This Drug

  DISM: Drug Inactivation by Structure Modification

Drug Resistance Data Categorized by Their Corresponding Diseases

ICD-01: Infectious/parasitic diseases

Escherichia coli intestinal infection [ICD-11: 1A03]

Drug Resistance Data Categorized by Their Corresponding Mechanisms

Drug Inactivation by Structure Modification (DISM)

Key Molecule: Aminoglycoside 2'-N-acetyltransferase (A2NA) [2]

• Molecule Alteration: Expression; Acquired
• Resistant Disease: Escherichia coli infection [ICD-11: 1A03.0]
• Experimental Note: Discovered Using In-vivo Testing Model
• In Vitro Model: Escherichia coli strain DH5a; 668369
• In Vitro Model: Escherichia coli strain XLI-Blue; 562
• In Vitro Model: Providencia stuartii strain PR50; 588
• In Vitro Model: Providencia stuartii strain SCH75082831A; 588
• Experiment for Molecule Alteration: DNA sequencing assay
• Experiment for Drug Resistance: Microdilution plates assay
• Mechanism Description: E.coli DH5alpha/pR 1000 demonstrated an AAC(2')-Ia resistance profile,with gentamicin, tobramycin, netilmicin, and 6'-Nethylnetilmicin MICs increased over those seen with E.coli DH5alpha. In addition, E.coli DH5alpha/pR 1000 did not show an elevated 2'-N-ethylnetilmicin MIC (MIC was 0.25ug/ml). Therefore, pR1000 encoded an enzyme capable of acetylating 6'-N-ethylnetilmicin but not 2'-N-ethylnetilmicin, suggesting 2'-N-acetyltransferase activity. DH5alpha/pSCH4500, which contains a subcloned 1.3-kb fragment, also demonstrated an AAC(2')-Ia resistance profile.

Mycobacterial diseases [ICD-11: 1B2Z ]

Drug Resistance Data Categorized by Their Corresponding Mechanisms

Drug Inactivation by Structure Modification (DISM)

Key Molecule: Aminoglycoside 2'-N-acetyltransferase (A2NA) [1]

• Molecule Alteration: Expression; Acquired
• Resistant Disease: Mycobacterium smegmatis infection [ICD-11: 1B2Z.3]
• Experimental Note: Identified from the Human Clinical Data
• In Vitro Model: Escherichia coli XL1-Blue; 562
• In Vitro Model: Streptomyces lividans strain 1326; 1200984
• In Vitro Model: Mycolicibacterium fortuitum strain FC1k; 1766
• In Vitro Model: Mycolicibacterium smegmatis strain mc2 155; 246196
• Experiment for Molecule Alteration: Southern blot hybridizations assay
• Experiment for Drug Resistance: Twofold dilution of antibiotics assay
• Mechanism Description: The aac(2')-Ib gene cloned in a mycobacterial plasmid and introduced in Mycobacterium smegmatis conferred resistance to gentamicin, tobramycin, dibekacin, netilmicin, and 6'-N-ethylnetilmicin.

References

• Ref 1: Characterization of the chromosomal aminoglycoside 2'-N-acetyltransferase gene from Mycobacterium fortuitum. Antimicrob Agents Chemother. 1996 Oct;40(10):2350-5. doi: 10.1128/AAC.40.10.2350.
• Ref 2: Characterization and transcriptional regulation of the 2'-N-acetyltransferase gene from Providencia stuartii. J Bacteriol. 1993 Oct;175(20):6492-8. doi: 10.1128/jb.175.20.6492-6498.1993.