TABLE 3.

Levels of DNA identity for the GDP-l-Fuc and GDP-d-PerNAc biosynthesis genes in the E. coli O157, S. enterica O30, and C. freundii F90 O-antigen gene clusters

Gene	% DNA identity for:
	C. freundii F90 and E. coli O157	C. freundii F90 and S. enterica O30	S. enterica O30 and E. coli O157
pcr	73.78	74.88	77.68
gmd	74.82	78.58	74.37
fcl	70.97	76.09	67.84
gmm	63.26	66.66	65.12
manC	72.36	74.47	76.21
manB	80.4	82.85	79.61