Discovery of disseminated J96-like strains of uropathogenic Escherichia coli O4:H5 containing genes for both papG(J96) (class I) and PrsG(J96) (class III) Gal(α1-4)Gal-binding adhesins

James R. Johnson, Thomas A. Russo, Flemming Scheutz, Jennifer J. Brown, Lixin Zhang, Karen Palin, Christopher Rode, Craig Bloch, Cari F. Marrs, Betsy Foxman

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63 Scopus citations

Abstract

The pyelonephritis-associated adhesin gene papG of Escherichia coli occurs in three variants. Whereas the class II and class III variants are common among human urinary tract infection isolates, the class I allele, despite being the first cloned, has previously been found only in source strain J96. Five strains have been discovered from geographically diverse locales that, like J96, contain both the class I and class III papG alleles. One strain caused bacteremia, whereas 4 caused cystitis. Like J96, all 5 had group III capsule genes, expressed the H5 flagellar antigen and the F13 fimbrial antigen, and exhibited similar genomic patterns and virulence factor profiles. These findings demonstrate that the class I papG allele is not unique to J96 but is present in a group of extraintestinal isolates of E. coli O4:H5 that represent a disseminated virulent clonal group.

Original languageEnglish (US)
Pages (from-to)983-988
Number of pages6
JournalJournal of Infectious Diseases
Volume175
Issue number4
DOIs
StatePublished - 1997

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