Table 2.

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

Structure of cag PAINo. (%) of strainsNo. of strains from patients with:No. of strains with the indicated genebNo. of strains with the indicated regionc
NUDaUlcervirD4cag13–cag14picBcagAIS605cagIIMiddlecagI
Uninterrupted83 (54.3)40438170828222647853
No cagPAI49 (32)8400205000
Split in two12 (7.8)232612012116908
Otherd 9 (5.9)3613360141
  • a NUD, nonulcer dyspepsia.

  • b By PCR and dot blot hybridization.

  • c By long-distance PCR.

  • d One 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.