doi: 10.3181/00379727-150-39120.
A rapid method for measuring guanylate cyclase activity in mammary tissue
- PMID: 1795
- DOI: 10.3181/00379727-150-39120
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A rapid method for measuring guanylate cyclase activity in mammary tissue
Proc Soc Exp Biol Med.
1975 Dec.
Abstract
A simple and rapid method for measuring guanylate cyclase activity in broken cell preparations of biological tissues is described. This method employs the rate of conversion of [32P]GTP to [32P]cyclic-GMP. The product of this reaction is isolated by ion-exchange chromatography and by a ZnSO4-Ba(OH)2 precipitation at pH 5.7. Using this method, about 30-50 samples can be assayed for guanylate cyclase activity during a 5-6 hr period. The characteristics of this enzyme in the mammary gland were found to be similar to those described for other tissues using different methods for measuring guanylate cyclase activity.
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