Gene-drug interactions (data source: DGIdb)
Gene Name Entrez ID Drug Name Chembl ID Interaction Types Sources publications

Variant-drug associations (data source: PharmGKB)
Gene Name Variant Alleles Chemical Phenotype Category Significance Notes Sentence Publications Annotation ID
STX1B rs4889606 AG + GG warfarin dosage yes in both European-Americans, and Egyptians. "However, STX1B rs4889606 was in high linkage disequilibrium with VKORC1-1639 G>A, and was no longer significant after including VKORC1-1639 G>A in the regression model. Based on these data, the polymorphisms do not appear to influence, in a clinically important way, warfarin dose requirements in European-Americans and Egyptians. " Genotypes AG + GG are associated with decreased dose of warfarin as compared to genotype AA. 26751406 1447677865
STX1B rs72800847 AA + AG warfarin dosage yes All participants were warfarin-naive. Genotypes AA + AG is associated with decreased dose of warfarin in people with heart valve replacement as compared to genotype GG. 27740732 1448267343
STX1B rs4889606 AG + GG warfarin dosage yes in African american patients even after conditioning on VKORC1 -1639G>A (rs9923231) variant. "Inclusion of rs4889606 genotypes, along with CYP2C9 alleles, rs9923231 genotypes, and clinical variables explained 31% of the interpatient variability in warfarin dose requirement." "The daily warfarin dose was significantly different among the three genotypes of rs4889606 with carriers of the AG or GG genotypes requiring higher doses (6.8 ±3.1 mg/day and 7.6 ±3.9 mg/day, respectively) compared to AA carriers in the Discovery (ß = 1.1; 95%CI = 0.46 – 1.8, p = 0.0009)". Genotypes AG + GG are associated with increased dose of warfarin as compared to genotype AA. 28135054 1448573185