Molecular Characterization of the SHV-11 β-Lactamase of Shigella dysenteriae

Author:

Ahamed Jasimuddin1,Kundu Manikuntala1

Affiliation:

1. Department of Chemistry, Bose Institute, Calcutta 700 009, India

Abstract

ABSTRACT A β-lactamase with an M r of 29,000 and a pI of 7.6 was partially purified from a clinical isolate of Shigella dysenteriae . The bla gene encoded the SHV-11 enzyme carrying the substitution Leu→Gln at position 35 and was linked to a strong promoter. This variant, unlike the prototype SHV-1 enzyme, hydrolyzed oxacillin, cloxacillin, and oxyiminocephalosporins such as cefotaxime.

Publisher

American Society for Microbiology

Subject

Infectious Diseases,Pharmacology (medical),Pharmacology

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