... of the marine fish intestine. * Author for correspondence ([email protected]) 21 10 2009 © 2010. 2010 anion exchange SLC4 water absorption carbonic anhydrase acid–base balance During the last decade, intestinal HCO 3 – secretion via apical Cl – /HCO 3 – exchange...

...Seth L. Alper SUMMARY Plasmalemmal Cl – /HCO 3 – exchangers are encoded by the SLC4 and SLC26 gene superfamilies, and function to regulate intracellular pH,[Cl – ] and cell volume. The Cl – /HCO 3 – exchangers of polarized epithelial cells also contribute to transepithelial secretion...