Ileal sodium/bile acid cotransporter, also known asapical sodium–bile acid transporter (ASBT) andileal bile acid transporter (IBAT), is abile acid:sodium symporterprotein that in humans is encoded by theSLC10A2gene.[5][6]
ASBT/IBAT is most highly expressed in theileum, where it is found on thebrush border membrane ofenterocytes. It is responsible for the initial uptake ofbile acids, particularly conjugated bile acids, from the intestine as part of theirenterohepatic circulation.[7]
^"Human PubMed Reference:".National Center for Biotechnology Information, U.S. National Library of Medicine.
^"Mouse PubMed Reference:".National Center for Biotechnology Information, U.S. National Library of Medicine.
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Craddock AL, Love MW, Daniel RW, Kirby LC, Walters HC, Wong MH, Dawson PA (January 1998). "Expression and transport properties of the human ileal and renal sodium-dependent bile acid transporter".The American Journal of Physiology.274 (1 Pt 1): G157-69.doi:10.1152/ajpgi.1998.274.1.G157.PMID9458785.
Montagnani M, Love MW, Rössel P, Dawson PA, Qvist P (October 2001). "Absence of dysfunctional ileal sodium-bile acid cotransporter gene mutations in patients with adult-onset idiopathic bile acid malabsorption".Scandinavian Journal of Gastroenterology.36 (10):1077–80.doi:10.1080/003655201750422693.PMID11589382.S2CID218908622.
Zhang EY, Phelps MA, Banerjee A, Khantwal CM, Chang C, Helsper F, Swaan PW (September 2004). "Topology scanning and putative three-dimensional structure of the extracellular binding domains of the apical sodium-dependent bile acid transporter (SLC10A2)".Biochemistry.43 (36):11380–92.doi:10.1021/bi049270a.PMID15350125.
Banerjee A, Ray A, Chang C, Swaan PW (June 2005). "Site-directed mutagenesis and use of bile acid-MTS conjugates to probe the role of cysteines in the human apical sodium-dependent bile acid transporter (SLC10A2)".Biochemistry.44 (24):8908–17.doi:10.1021/bi050553s.PMID15952798.