該基因編碼的蛋白質是atp結合盒（abc）轉運蛋白超家族的成員。abc蛋白通過細胞外和細胞內的膜運輸各種分子。abc基因分為七個不同的亞家族（abc1，mdr/tap，mrp，ald，oabp，gcn20，white）。該蛋白是mrp亞家族的一員，參與多藥耐藥。這一家族成員在細胞解毒過程中扮演著泵的角色，為其底物，有機陰離子。它也可能在前列腺素介導的cAMP信號傳導中起作用。該基因的選擇性剪接導致多個轉錄變體。[由RefSeq提供，2014年9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 protein is a member of the MRP subfamily which is involved in multi-drug resistance. This family member plays a role in cellular detoxification as a pump for its substrate, organic anions. It may also function in prostaglandin-mediated cAMP signaling in ciliogenesis. Alternative splicing of this gene results in multiple transcript variants. [provided by RefSeq, Sep 2014]