Point mutation in the group B streptococcal pbp2x gene conferring decreased susceptibility to β-lactam antibiotics

Samira Dahesh, Mary E. Hensler, Nina M. van Sorge, Robert E. Gertz Jr., Stephanie Schrag, Victor Nizet, Bernard W. Beall

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168 Citations (Scopus)

Abstract

Beta-lactam antibiotics (BLAs) are the first-line agents used against group B streptococci (GBS) infection. A clonal set of four independent, invasive GBS isolates with elevated MICs to BLAs were identified that shared a pbp2x mutation (Q557E) corresponding to a resistance-conferring pneumococcal mutation. BLA sensitivity was restored through allelic replacement or complementation with the wild-type pbp2x. Copyright © 2008, American Society for Microbiology. All Rights Reserved.
Original languageEnglish
Pages (from-to)2915-2918
JournalAntimicrobial agents and chemotherapy
Volume52
Issue number8
DOIs
Publication statusPublished - Aug 2008
Externally publishedYes

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