Amino-acid sequence of the catalytic subunit of the (Na+ + K+)ATPase deduced from a complementary DNA

Abstract
A complementary DNA was isolated and characterized for the catalytic subunit of the sheep kidney Na/K-dependent ATPase. The 1016 amino acid protein seems to have 8 transmembrane domains. The apparent ouabain binding site is located at the extracellular junction of 2 transmembrane domains and is linked to the phosphorylation site by a 60 amino acid conserved sequence that may be a major channel for energy transduction.