Table 3 Prevalence of virulence, adhesion, and iron acquisition genes in 64 intestinal E. coli strains
Gene or operon | Description | Total Prevalence [%] |
|---|---|---|
Virulence gene | ||
stx1 | shigatoxin 1 | 0 |
stx2 | shigatoxin 1 | 0 |
eae | intimin | 0 |
sta | heat-stable enterotoxin | 0 |
F41 | fimbriae F41 | 0 |
K99 | fimbriae K99 | 0 |
Adhesins | ||
afa/draB | Afimbrial/Dr antigen-specific adhesion | 0 |
crlA | curli fibre gene | 92.2 |
fimC | Type 1 fimbriae | 78.1 |
hra | Heat-resistant agglutinin | 6.3 |
papC | Pilus associated with pyelonephritis | 1.6 |
sfa/foc | S fimbriae and F1C fimbriae | 1.6 |
tsh | Temperature-sensitive haemagglutinin | 3.1 |
Iron acquisition | ||
chuA | Heme receptor gene | 6.3 |
fyuA | Ferric yersinia uptake | 10.9 |
ireA | Iron-responsive element | 1.6 |
iroN | Catecholate siderphore | 3.1 |
iucD | Aerobactin synthesis | 4.7 |
sitD chr. | Salmonella iron transport system gene | 1.6 |
sitD ep. | Salmonella iron transport system gene | 4.7 |