Occurrence of aminoglycoside-modifying-enzyme genes aac(6')-aph(2"), aph(3'), ant(4') and ant(6) in clinical isolates of Enterococcus faecalis resistant to high-level of gentamicin and amikacin.
The genes coding for 4 aminoglycoside-modifying enzymes AAC(6')-APH(2"), APH(3'), ANT(4') and ANT(6) were determined in 44 Slovak clinical isolates of Enterococcus faecalis with high-level resistance to gentamicin (HLGR, collection 1) and 48 E. faecalis isolates with resistance to amikacin (AR, collection 2). The occurrence of spotted genes was (collection 1 vs. collection 2): aac(6)-aph(2") 81.8 vs. 8.3 %, ant(4') 52.3 vs. 81.3 %, aph(3') 50 vs. 56.3 % and ant(6) 6.8 vs. 4.2 %, the most frequent combinations of genes in the HLGR collection were aac(6')-aph(2") + ant(4') and aac(6')-aph(2") + aph(3). In contrast, the aph(3') + ant(4') gene profile was predominant in AR isolates. None of the isolates contained all four AGME genes simultaneously.
Filipová
M
M
Department of Microbiology and Virology, Faculty of Science, Comenius University, Bratislava, Slovakia.
Bujdákova
H
H
Drahovská
H
H
Lisková
A
A
Hanzen
J
J
D000123:Acetyltransferases / Q000235:genetics; D000583:Amikacin / Q000494:pharmacology; D000617:Aminoglycosides / Q000494:pharmacology*; D000900:Anti-Bacterial Agents / Q000494:pharmacology; D004269:DNA, Bacterial / Q000032:analysis / Q000235:genetics; D024901:Drug Resistance, Multiple, Bacterial / Q000235:genetics*; D013293:Enterococcus faecalis / Q000187:drug effects* / Q000201:enzymology / Q000235:genetics* / Q000302:isolation & purification; D005839:Gentamicins / Q000494:pharmacology; D016908:Gram-Positive Bacterial Infections / Q000382:microbiology; D006801:Humans; D008826:Microbial Sensitivity Tests; D009713:Nucleotidyltransferases / Q000235:genetics*; D017853:Phosphotransferases (Alcohol Group Acceptor) / Q000235:genetics*; D016133:Polymerase Chain Reaction
D000617:Aminoglycosides; D000900:Anti-Bacterial Agents; D004269:DNA, Bacterial; D005839:Gentamicins; D000583:Amikacin; C108453:6'-aminoglycoside acetyltransferase-2''-aminoglycoside phosphotransferase; D000123:Acetyltransferases; D017853:Phosphotransferases (Alcohol Group Acceptor); C022679:streptomycin 3''-kinase; D009713:Nucleotidyltransferases