[HCO3-stimulated adenosine triphosphatase in rat ovarian tumor cells].

Dependence of the HCO--3-stimulated ATPase activity from nuclei and mitochondria of rat ovary ascites tumor cells on pH and concentration of bicarbonate ions was studied. PCMB, NaN3, NaCNS, NaClO4 and NaF inhibited the HCO--3-stimulated ATPase activity. The properties of HCO--3-sensitive ATPase from rat ovary ascites tumor cells were similar to that of HCO--3-ATPases from other tissues.