TABLE 2.

Homology of H. pylori HefC, HefF, and HefI to E. coli AcrB and C.jejuni CmeF

Protein	Homology to the indicated proteina
	AcrB			HefC			HefF			HefI
	Identity (%)	Similarity (%)	P	Identity (%)	Similarity (%)	P	Identity (%)	Similarity (%)	P	Identity (%)	Similarity (%)	P
CmeF	25	48	10−84	37	58	10−177	22	45	10−55	22	44	10−48
AcrB				27	50	10−106	24	46	10−64	20	41	10−42
HefC							25	45	10−66	22	45	10−53
HefF										28	52	10−127

^aOf the three Hefs, HefC shows the strongest homology to AcrB and CmeF.