FIG. 2.

Gel electrophoresis images for the extended quadruplex PCR profile of a few UPEC isolates. The isolates were assigned to a phylo group according to the presence or absence of the following genes in the order arpA, chuA, yjaA, and TspE4C2, where group A is (+ − − −), group A/C is (+ − + −), group B₁ is (+ − − +), group B2 is (− + + −), group D or E is (+ + − −) or (+ + − +), group F is (− + − −), and other combinations represent unknown groups (− + + +), (− − − +), and (+ + + +). PCR, polymerase chain reaction.