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SLC26A3
Solute carrier family 26, member 3, also known as CLD (chloride anion exchanger), or DRA (downregulated-in-adenoma) is a protein that in humans is encoded by the ''SLC26A3'' gene.〔(【引用サイトリンク】 url = http://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene&Cmd=ShowDetailView&TermToSearch=1811 )〕
== Function ==
The downregulated-in-adenoma (DRA) is a membrane protein in intestinal cells. It is an anion exchanger and a member of the sulfate anion transporter (SAT) family. It mediates chloride and bicarbonate exchange and additionally transports sulfate and other anions at the apical membrane, part of the plasma membrane of enterocytes. It is different from the anion exchanger that present in erythrocytes, renal tubule, and several other tissues.
The protein encoded by this gene is a transmembrane glycoprotein that functions as a sulfate transporter. It is localized to the mucosa of the lower intestinal tract, particularly to the apical membrane of columnar epithelium and some goblet cells, and is instrumental in chloride reuptake, aiding in the creation of an osmotic gradient for resorption of fluid from the lumen of the intestine.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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