UniProt functional annotation for Q86UW1

UniProt code: Q86UW1.

Organism: Homo sapiens (Human).
Taxonomy: Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo.
 
Function: Essential component of the Ost-alpha/Ost-beta complex, a heterodimer that acts as the intestinal basolateral transporter responsible for bile acid export from enterocytes into portal blood. Efficiently transports the major species of bile acids. {ECO:0000269|PubMed:16317684}.
 
Subunit: Interacts with SLC51B. The Ost-alpha/Ost-beta complex is a heterodimer composed of alpha (SLC51A) and beta (SLC51B) subunit (By similarity). {ECO:0000250}.
Subcellular location: Cell membrane; Multi-pass membrane protein. Endoplasmic reticulum membrane {ECO:0000250}; Multi-pass membrane protein {ECO:0000250}. Note=Transported from the endoplasmic reticulum to the plasma membrane upon interacting with SLC51B (By similarity). Mainly restricted to the lateral and basal membranes of ileal enterocytes. {ECO:0000250}.
Tissue specificity: Widely expressed with a high expression in ileum. Expressed in testis, colon, liver, small intestine, kidney, ovary and adrenal gland; and at low levels in heart, lung, brain, pituitary, thyroid gland, uterus, prostate, mammary gland and fat. {ECO:0000269|PubMed:12719432, ECO:0000269|PubMed:16317684}.
Induction: Positively regulated via NR1H4/FXR in adrenal gland, kidney and intestine. {ECO:0000269|PubMed:16251721, ECO:0000269|PubMed:16269519}.
Similarity: Belongs to the OST-alpha family. {ECO:0000305}.

Annotations taken from UniProtKB at the EBI.