Ontology highlight
ABSTRACT:
SUBMITTER: Antunes NT
PROVIDER: S-EPMC3264220 | biostudies-literature | 2012 Feb
REPOSITORIES: biostudies-literature
Antunes Nuno T NT Frase Hilary H Toth Marta M Vakulenko Sergei B SB
Antimicrobial agents and chemotherapy 20111114 2
The class A β-lactamase FTU-1 produces resistance to penicillins and ceftazidime but not to any other β-lactam antibiotics tested. FTU-1 hydrolyzes penicillin antibiotics with catalytic efficiencies of 10(5) to 10(6) M(-1) s(-1) and cephalosporins and carbapenems with catalytic efficiencies of 10(2) to 10(3) M(-1) s(-1), but the monobactam aztreonam and the cephamycin cefoxitin are not substrates for the enzyme. FTU-1 shares 21 to 34% amino acid sequence identity with other class A β-lactamases ...[more]