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Na(+),K(+)-ATPase and gastric H(+),K(+)-ATPase are two related enzymes that are responsible for active cation transport. Na(+), K(+)-ATPase activity is inhibited specifically by ouabain, whereas(More)
Several mutations of residues Glu(795) and Glu(820) present in M5 and M6 of the catalytic subunit of gastric H(+),K(+)-ATPase have resulted in a K(+)-independent, SCH 28080-sensitive ATPase activity,(More)
In this study we reveal regions of Na(+),K(+)-ATPase and H(+),K(+)-ATPase that are involved in cation selectivity. A chimeric enzyme in which transmembrane hairpin M5-M6 of H(+),K(+)-ATPase was(More)