Experimental prediction of the evolution of ceftazidime resistance in the CTX-M-2 extended-spectrum beta-lactamase.

Abstract:

:We applied in vitro evolution to an Escherichia coli strain containing bla(CTX-M-2) and obtained 10 independent mutant bla(CTX-M-2) alleles that confer elevated resistance to ceftazidime (MIC > or = 32 microg/ml) but lost the ability to confer resistance to cefepime. All alleles had a Pro-to-Ser substitution at position 167.

authors

Welsh KJ,Barlow M,Tenover FC,Biddle JW,Rasheed JK,Clark LA,McGowan JE Jr

doi

10.1128/AAC.49.3.1242-1244.2005

subject

Has Abstract

pub_date

2005-03-01 00:00:00

pages

1242-4

issue

3

eissn

0066-4804

issn

1098-6596

pii

49/3/1242

journal_volume

49

pub_type

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