Recombinant Human Bile salt export pump (ABCB11), Truncated

Uniprot Id

O95342

Target Species

Human

Target Name

ABCB11

Target Full Name

Bile salt export pump

Target Function

Catalyzes the transport of the major hydrophobic bile salts, such as taurine and glycine-conjugated cholic acid across the canalicular membrane of hepatocytes in an ATP-dependent manner, therefore participates in hepatic bile acid homeostasis and consequently to lipid homeostasis through regulation of biliary lipid secretion in a bile salts dependent manner. Transports taurine-conjugated bile salts more rapidly than glycine-conjugated bile salts. Also transports non-bile acid compounds, such as pravastatin and fexofenadine in an ATP-dependent manner and may be involved in their biliary excretion.

Target Involvement

Cholestasis, progressive familial intrahepatic, 2 (PFIC2); Cholestasis, benign recurrent intrahepatic, 2 (BRIC2)

Target Subcellular Location

Apical cell membrane; Multi-pass membrane protein. Recycling endosome membrane; Multi-pass membrane protein. Endosome. Cell membrane; Multi-pass membrane protein.

Target Protein Families

ABC transporter superfamily, ABCB family, Multidrug resistance exporter (TC 3.A.1.201) subfamily

Target Tissue Specificity

Expressed predominantly, if not exclusively in the liver, where it was further localized to the canalicular microvilli and to subcanalicular vesicles of the hepatocytes by in situ.

Target Research Area

Cancer

Target Synonyms

ABC member 16; MDR/TAP subfamily; ABC16; ABCB1; Abcb11; ABCBB_HUMAN; ATP binding cassette sub family B (MDR/TAP) member 11; ATP binding cassette sub family B member 11; ATP-binding cassette sub-family B member 11; Bile salt export pump; BRIC2; Bsep; PFIC 2; PFIC2; PGY4; progressive familial intrahepatic cholestasis 2; Sister of P glycoprotein; Spgp

Target Background

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 the major canalicular bile salt export pump in man. Mutations in this gene cause a form of progressive familial intrahepatic cholestases which are a group of inherited disorders with severe cholestatic liver disease from early infancy.