Biochemical properties of beta-lactamase produced by Flavobacterium odoratum

Author:

Sato K,Fujii T,Okamoto R,Inoue M,Mitsuhashi S

Abstract

A constitutively produced beta-lactamase was purified from Flavobacterium odoratum GN14053. The purified enzyme gave a single protein band on polyacrylamide gel electrophoresis. The isoelectric point was 5.8, and the molecular weight was estimated to be about 26,000. The enzyme activity was inhibited by EDTA, iodine, p-chloromercuribenzoate, HgCl2, and CuSO4 but not by clavulanic acid, sulbactam, imipenem, and cephamycin derivatives. The enzyme showed a broad substrate profile, hydrolyzing oxyiminocephalosporins, cephamycins, imipenem, and some penicillins.

Publisher

American Society for Microbiology

Subject

Infectious Diseases,Pharmacology (medical),Pharmacology

Reference14 articles.

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3. Purification and some properties of cephalosporinase from Proteus vulgaris;Matsubara N.;Antimicrob. Agents Chemother.,1981

4. Mitsuhashi S. and M. Inoue 1981. Mechanisms of resistance to P-lactam antibiotics p. 41-56. In S. Mitsuhashi (ed.) Beta-lactam antibiotics. Japan Scientific Societies Press Tokyo.

5. Micro-iodometric assay for penicillinase;Novick R. P.;Biochem. J.,1962

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