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Recent gene conversions between duplicated glutamate decarboxylase genes (gadA and gadB) in pathogenic Escherichia coli.

Molecular biology and evolution - 1 Oct 2007

Bergholz Teresa M, Tarr Cheryl L, Christensen Lisa M, Betting David J, Whittam Thomas S

Abstract excerpt

Escherichia coli have evolved adaptive systems to resist strongly acidic habitats in part through the production of 2 biochemically identical isoforms of glutamate decarboxylase (GAD), encoded by the gadA and gadB genes. These genes occur in E. coli and other members of the genospecies (e.g., Shigella spp.) and originated as part of a genomic fitness island acquired early in Escherichia evolution. The present...

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PMID: 17675652
DOI: 10.1093/molbev/msm163

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-08.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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