previous studies have demonstrated predominance of the nucleotidyltransferase anl ( 2 '' '' ) as the mechanism of enzymatic resistance to gentamicin in the united states and many european countries ( federal republic of germany , switzerland , greece , turkey ) whereas the acetylating enzymes aac ( 6 ' ) and aac ( 3 ) were the principal causes of resistance to aminoglycosides in japan and chile .
C0017436
gentamici
C0002556
aminoglycoside