该基因编码的蛋白质是atp结合盒（abc）转运蛋白超家族的成员。abc蛋白通过细胞外和细胞内的膜运输各种分子。abc基因分为七个不同的亚家族（abc1，mdr/tap，mrp，ald，oabp，gcn20，white）。这种全转运蛋白是mrp亚家族的一员，参与多药耐药。该蛋白作为一种多特异性有机阴离子转运蛋白，以氧化戊二酮、半胱氨酸白三烯和活化的黄曲霉毒素b1为底物。这种蛋白质还运输葡萄糖醛酸和类固醇激素和胆盐的硫酸盐结合物。该基因的选择性剪接变体已经被描述，但其全长性质未知。[由RefSeq提供，2012年4月]
The protein encoded by this gene is a member of the superfamily of ATP-binding cassette (ABC) transporters. ABC proteins transport various molecules across extra-and intra-cellular membranes. ABC genes are divided into seven distinct subfamilies (ABC1, MDR/TAP, MRP, ALD, OABP, GCN20, White). This full transporter is a member of the MRP subfamily which is involved in multi-drug resistance. This protein functions as a multispecific organic anion transporter, with oxidized glutatione, cysteinyl leukotrienes, and activated aflatoxin B1 as substrates. This protein also transports glucuronides and sulfate conjugates of steroid hormones and bile salts. Alternatively spliced variants of this gene have been described but their full-length nature is unknown. [provided by RefSeq, Apr 2012]