has role has_role has role gene as virulence factor in pathogen gene mutant attenuated in host has role has_role has role Helicobacter pylori J99 Platyrrhini protein-coding gene of Helicobacter pylori J99 cagA 20140406 85963 889201 Bin Zhao, Oliver He NCBI-supplied PMID: 9923682; 14573673; 15287151; 15377424; 15378755; 15484301; 15526375; 15563842; 15606640; 15628715; 15831497; 15856031; 15972330; 15980153; 16275761; 16367902; 16368981; 16469000; 16618412; 16909137; 17160020; 17194805; 17352012; 17454874; 17520364; 17539287; 17541440; 17728213; 18019737; 18227572; 18300359; 18324914; 18356158; 18483552; 18587223; 18822081; 19029944; 19030199; 19069914; 19147578; 19261108; 19344006; 19364040; 19546211; 19621632; 19798427; 19893742; 19930551; 20107966; 20136573; 20587874; 20676134; 21029692; 21406172; 21509655; 21518972; 21562218; 21859954; 21876621; 22189161; 22348604; 22383989; 22870595; 23163894; 23190390; 23432983; 23652164; 23888551; 24072713 WEB: http://www.ncbi.nlm.nih.gov/gene cag island protein, cytotoxicity associated immunodominant antigen jhp0495 protein-coding 396 MUTATION: attenuated in monkeys [PMID:18395086]. virulence factor gene role