TABLE 1

Metadata of STEC strains and presence of virulence genes, as identified by in silico analysis

StrainSerotypeSourceSize (bp)G+C content (%)STVirulence factors and other genetic featuresaAccession no.
stxeaeehxAihasta1astAK88issgadlpfAstcE
CFSAN004178O36:H14Alfalfa sprouts5,498,45350.611762g+++CP015229
213,84745.8++CP012498
CFSAN004179O136:H16Bagged lettuce5,213,99850.83291a+++CP013662
242,18747.0+++++CP012501
CFSAN004180O168:H8bLettuce5,286,55850.77182a++++CP015228
225,29246.3++++CP012500
CFSAN004181O168:H8Ground beef5,233,45950.87182a+++CP013663
223,95246.3++++CP012499
  • a stx, Shiga toxin variant; eae, intimin; iha, IrgA homologue adhesin; sta1, heat-stable enterotoxin; astA, enteroaggregative heat-stable enterotoxin; K88, fimbriae; iss, increased serum survival; gad, glutamate decarboxylase; lpfA, long polar fimbriae; stcE, metalloprotease.

  • b H-type identified in silico, initially reported as O168:HNT.