Transcriptional Analysis of Genes Encoding Shiga Toxin 2 and Its Variants in Escherichia coli

AUTOR(ES)

Zhang, Wenlan

FONTE

American Society for Microbiology

RESUMO

Six of 37 non-O157 Escherichia coli strains possessing Shiga toxin (Stx) 2 gene variant stx2d or stx2e secreted no detectable Stx. These isolates produced significantly less stx mRNA than Stx2d, Stx2e, Stx2c, or Stx2 secretors did. Standard screening procedures miss a significant subset of E. coli harboring stx2 variants.

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