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）编码蛋白是mrp亚家族的一员，参与多药耐药。该基因突变导致弹性假黄瘤另一种编码不同蛋白质的剪接转录变体已经被描述为该基因。[由RefSeq提供，2008年7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). The encoded protein, a member of the MRP subfamily, is involved in multi-drug resistance. Mutations in this gene cause pseudoxanthoma elasticum. Alternatively spliced transcript variants that encode different proteins have been described for this gene. [provided by RefSeq, Jul 2008]