TABLE 2.

Statuses of 153 strains with regard to various genes and fragments of the cag PAI

Structure of cag PAI	No. (%) of strains	No. of strains from patients with:		No. of strains with the indicated geneb					No. of strains with the indicated regionc
		NUDa	Ulcer	virD4	cag13–cag14	picB	cagA	IS605	cagII	Middle	cagI
Uninterrupted	83 (54.3)	40	43	81	70	82	82	22	64	78	53
No cag PAI	49 (32)	8	4	0	0	2	0	5	0	0	0
Split in two	12 (7.8)	23	26	12	0	12	11	6	9	0	8
Otherd	9 (5.9)	3	6	1	3	3	6	0	1	4	1

^aNUD, nonulcer dyspepsia. 

^bBy PCR and dot blot hybridization. 

^cBy long-distance PCR. 

^dOne strain had the middle region and cagII, two strains had the middle region and cagI, one strain had cagII only, one strain had cagI only, one strain had the middle region only, and three strains had cagA only.