title: Identification and purification of a soluble adenosine triphosphatase from Tetrahymena pyriformis .
mesh_terms: D000251:Adenosine Triphosphatases / Q000302:isolation & purification / Q000378:metabolism*; D000818:Animals; D001464:Barium / Q000494:pharmacology; D002118:Calcium / Q000494:pharmacology; D002413:Cations, Divalent; D004789:Enzyme Activation / Q000187:drug effects; D007700:Kinetics; D008970:Molecular Weight; D013329:Structure-Activity Relationship; D013769:Tetrahymena pyriformis / Q000201:enzymology*
chemical_list: D002413:Cations, Divalent; D001464:Barium; D000251:Adenosine Triphosphatases; D002118:Calcium