TABLE 6.

Levels of amino acid identity for the proteins encoded in the CA gene cluster and by O-antigen gene cluster GDP-l-Fuc biosynthesis genes^a

Gene	% Amino acid identity for:
	E. coli O157 and E. coli CA genes	S. enterica O30 and S. enterica CA genes	S. enterica O50 and S. enterica CA genes	E. coli O55 and E. coli CA genes
gmd	89.51	98.65	97.30	90.86
fcl	78.19	98.44	93.69
gmm	60.37	93.63	88.53	52.53
manC	60.58	60.16	60.16	59.53
manB	97.36	94.73	91.44	85.08

^aThe genes in the E. coli CA cluster were compared to the genes in the E. coli O157 and E. coli O55 O-antigen gene clusters, and the genes in the S. enterica CA gene cluster were compared to the genes in the S. enterica O50 and O30 O-antigen gene clusters.