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Correlation between Ca2+-stimulated adenosine triphosphatase activity and Ca2+ uptake in microsomal fraction of rat
The International Journal of Biochemistry
|January 1, 1985
Abstract:
Both the Ca2+-ATPase activity and the Ca2+ uptake in a microsomal fraction of rat submandibular gland were inhibited by the addition of indomethacin in vitro. The decrease of both the Ca2+-ATPase activity and the Ca2+ uptake caused by the drug closely paralleled each other (r = 0.97). The inhibitory manner of indomethacin on Ca2+-ATPase and Ca2+ uptake was noncompetitive for Ca2+. These results suggest that the Ca2+-ATPase in the microsomal fraction of rat submandibular gland is a Ca2+ pump in this tissue.