FEATURES

FAMILY

DESCRIPTION

Also known as ABCBB_HUMAN, ABCB11, BSEP. 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 (PubMed:16332456, PubMed:22262466, PubMed:15791618, PubMed:18985798, PubMed:19228692, PubMed:20398791, PubMed:24711118, PubMed:29507376, PubMed:20010382, PubMed:32203132). Transports taurine-conjugated bile salts more rapidly than glycine-conjugated bile salts (PubMed:16332456). Also transports non-bile acid compounds, such as pravastatin and fexofenadine in an ATP-dependent manner and may be involved in their biliary excretion (PubMed:15901796, PubMed:18245269). Interacts with HAX1 (By similarity). Interacts with the adapter protein complex 2 (AP-2) throught AP2A2 or AP2A1; this interaction regulates cell membrane expression of ABCB11 through its internalization in a clathrin-dependent manner and its subsequent degradation (PubMed:22262466).

EXTERNAL LINKS

ABCB11

Bile salt export pump

ABCB11

Molecular Synopsis