. . . . . . . . . . . . . . . . . . . . . . . "s4a4_mouse"^^ . "Slc4a4"^^ . "Na(+)/HCO3(-) cotransporter"^^ . "Solute carrier family 4 member 4"^^ . "Nbc1"^^ . "Nbce1"^^ . . "Electrogenic sodium bicarbonate cotransporter 1"^^ .