Immunogen sequence: DPGSPAARSG LRAQDRLIEV NGQNVEGLRH AEVVASIKAR EDEARLLVVD PETDEHFKRL RVTPTEEHVE GPLPSPVTNG TSPAQLNGGS ACSSRSDLPG SDKDTEDGSA WKQDPFQESG L. NHE3 is a sodium/hydrogen exchanger in the brush border membrane of the proximal tubule, small inte