A new SHV-derived extended-spectrum beta-lactamase (SHV-24) that hydrolyzes ceftazidime through a single-amino-acid substitution (D179G) in the -loop.

Abstract:

:A new SHV-derived extended-spectrum beta-lactamase (SHV-24) conferring high-level resistance to ceftazidime but not cefotaxime and cefazolin was identified in Japan. This enzyme was encoded by a transferable 150-kb plasmid from an Escherichia coli clinical isolate. The pI and K(m) for CAZ of this enzyme were 7.5 and 30 microM, respectively. SHV-24 was found to have a D179G substitution in the Omega-loop of the enzyme.

authors

Kurokawa H,Yagi T,Shibata N,Shibayama K,Kamachi K,Arakawa Y

doi

10.1128/aac.44.6.1725-1727.2000

subject

Has Abstract

pub_date

2000-06-01 00:00:00

pages

1725-7

issue

6

eissn

0066-4804

issn

1098-6596

journal_volume

44

pub_type

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