The membrane-associated 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 MDR/TAP subfamily. Members of the MDR/TAP subfamily are involved in multidrug resistance. The protein encoded by this gene is an ATP-dependent drug efflux pump for xenobiotic compounds with broad substrate specificity. It is responsible for decreased drug accumulation in multidrug-resistant cells and often mediates the development of resistance to anticancer drugs. This protein also functions as a transporter in the blood-brain barrier.
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Protein Aliases: ATP-binding cassette sub-family B member 1; ATP-binding cassette sub-family B member 1A; ATP-binding cassette sub-family B member 1B; ATP-binding cassette, sub-family B (MDR/TAP), member 1; ATP-binding cassette, sub-family B (MDR/TAP), member 4; ATP-binding cassette, subfamily B, member 1A; ATP-dependent translocase ABCB1; CD243; colchicin sensitivity; doxorubicin resistance; ecotropic viral integration site 32; MDR1A; multi-drug resistance 3; Multidrug resistance protein 1; Multidrug resistance protein 1A; Multidrug resistance protein 1B; Multidrug resistance protein 3; multiple drug resistant 1a; P glycoprotein 1; P glycoprotein 3; P-glycoprotein 1; P-glycoprotein 3; Phospholipid transporter ABCB1
Gene Aliases: ABC20; ABCB1; Abcb1a; Abcb1b; Abcb4; CD243; CLCS; Evi32; GP170; mdr; mdr-3; MDR1; Mdr1a; Mdr1b; Mdr3; P-GP; Pgp; Pgy-1; Pgy-3; PGY1; Pgy1-1; Pgy3