Nonfimbrial Adhesin Mutants Reveal Divergent Escherichia coli O157:H7 Adherence Mechanisms on Human and Cattle Epithelial Cells

Table 1

Details of the nonfimbrial genes of interest.

Gene	Amino acid change^a	Description
Iha	—	Fur-regulated adhesin and enterobactin transporter
ompA	—	Type 5 secretion system autotransporter
csgG	P76 T	Curlin biosynthesis section protein
wzzB	P136S	LPS modal length regulator involved in adherence
eaeH	T1301 K	Intimin-like homolog protein
eivA	P33S	Small protein involved in the biosynthesis of T3SS needle
yfaL	S23P D38 N T104I	Type 5 secretion system autotransporter
Cah	836 Opal	Type 5 secretion system autotransporter
Eae	—	Intimin (adhesin)

^aAmino acid changes that are specified are in the context of the amino acid positions and are a result of the SNPs in the genes. “—” indicates no amino acid change.