Studies on Ca2+-stimulated adenosine triphosphatase in rat submandibular glands: its distribution and properties

Intracellular distribution and some characteristics of a Ca2+-stimulated adenosine triphosphatase (ATPase) in rat submandibular glands were investigated. This enzyme was activated by calcium alone, and magnesium was not necessary for its activation. Mg2+-stimulated ATPase also was investigated in the same enzyme preparations.