Properties of a bicarbonate-stimulated ATPase from rat uterus.
Crude subcellular fractions from rat uterus contain a HCO-3 -stimulated Mg2+ -ATPase with properties analogous to those previously reported for the enzyme in gastric mucosa, pancreas, salivary gland and liver lyosome. Estradiol-17 beta treatment of ovariectomized rats resulted in an increase in uterine mitochondrial (HCO-3 +Mg2+)-ATPase and Mg2+ -ATPase activity. In an early response (105 min) to estradiol-17 beta treatment of ovariectomized rats, the lysosomal enzyme, beta-N-acetylglucosaminidase increased in the nuclear and mitochondrial fractions and decreased in the microsomal and supernatant fractions.
D000251:Adenosine Triphosphatases / Q000378:metabolism*; D000818:Animals; D001639:Bicarbonates / Q000494:pharmacology*; D002369:Castration; D004789:Enzyme Activation / Q000187:drug effects; D004958:Estradiol / Q000494:pharmacology; D005260:Female; D007700:Kinetics; D008274:Magnesium / Q000494:pharmacology; D008861:Microsomes / Q000187:drug effects / Q000201:enzymology; D008928:Mitochondria / Q000187:drug effects / Q000201:enzymology; D051381:Rats; D013347:Subcellular Fractions / Q000201:enzymology; D014599:Uterus / Q000201:enzymology*
D001639:Bicarbonates; D004958:Estradiol; D000251:Adenosine Triphosphatases; D008274:Magnesium