Pendrin, encoded by the Pendred syndrome gene, resides in the apical region of renal intercalated cells and mediates bicarbonate secretion. - Royaux,I.E.; Wall,S.M.; Karniski,L.P.; Everett,L.A.; Suzuki,K.; Knepper,M.A.; Green,E.D. (Proc Natl Acad Sci USA, 2001)