||carrier of one CYP2C9*11 allele
rs28371685, also known as 1003C>T, 42542C>T or R335W is a SNP in the CYP2C9 gene.
The rs28371685(T) allele defines the CYP2C9*11 variant, which has decreased activity.
According to a 23andMe discussion This is one of the SNPs which were re-analyzed April 2009. Customers with older data may wish to redownload. SNPs effected rs4420638, rs34276300, rs3091244, rs34601266, rs2033003, rs7900194, rs9332239, rs28371685, rs1229984, and rs28399504.
[PMID 20214591] Pharmacogenomics in aspirin intolerance
[PMID 18466099] Influence of CYP2C9 and VKORC1 on warfarin dose, anticoagulation attainment and maintenance among European-Americans and African-Americans.
[PMID 18752379] Warfarin pharmacogenetics.
[PMID 23133420] Pharmacogenomic Diversity among Brazilians: Influence of Ancestry, Self-Reported Color, and Geographical Origin.