Interestingly, we observed that 17% WT mice (3 male and 1 female) developed macroscopic gastric carcinomas, but none of GB2 mice did (Table 1) (Chi2 test p = 0.008, considering the three genotypes; and Fisher’s exact test p = 0.007 comparing WT versus the combination of GB2+/+ and GB2+/−). This evidence concerns the gene GABBR2 and gastric carcinoma.