ABCA1 and hyperlipidemia: Allele C of rs12003906 is associated with decreased response to atorvastatin, pravastatin, or simvastatin in people with Hyperlipidemias as compared to allele G. Allele C, G, and G of rs2472507, rs2515629, and rs4149297, respectively are associated with increased expression of ABCA1 in HapMap cells.