title: Lack of immunological cross reactivity between the transport enzymes (Na+ + K+)-ATPase and (K+ + H+)-ATPase.
abstract: Goat antisera against (Na+ + K+)-ATPase and its isolated subunits and against (K+ + H+)-ATPase have been prepared in order to test for immune cross-reactivity between the two enzymes, whose catalytic subunits show great chemical similarity. None of the (Na+ + K+)-ATPase antisera cross-reacted with (K+ + H+)-ATPase or inhibited its enzyme activity. The same was true for the (K+ + H+)-ATPase antiserum with regard to (Na+ + K+)-ATPase and its subunits and its enzyme activity. So notwithstanding the chemical similarity of their subunits, there is no immunological cross-reactivity between these two plasma membrane ATPases.
mesh_terms: D000251:Adenosine Triphosphatases / Q000276:immunology*; D000818:Animals; D001693:Biological Transport, Active; D002462:Cell Membrane / Q000201:enzymology; D003429:Cross Reactions; D005753:Gastric Mucosa / Q000201:enzymology; D017506:H(+)-K(+)-Exchanging ATPase; D007668:Kidney / Q000201:enzymology; D046911:Macromolecular Substances; D008970:Molecular Weight; D011817:Rabbits; D000254:Sodium-Potassium-Exchanging ATPase / Q000276:immunology*; D013552:Swine
chemical_list: D046911:Macromolecular Substances; D000251:Adenosine Triphosphatases; D017506:H(+)-K(+)-Exchanging ATPase; D000254:Sodium-Potassium-Exchanging ATPase