Propranolol, a phosphatidate phosphohydrolase inhibitor, also inhibits protein kinase C.

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Propranolol, a phosphatidate phosphohydrolase inhibitor, also inhibits protein kinase C.

Propranolol, a beta-adrenergic receptor antagonist, also inhibits phosphatidate phosphohydrolase, the enzyme that converts phosphatidic acid into diacylglycerol. This latter effect has prompted recent use of propranolol in studies examining the importance of diacylglycerol and phosphatidic acid in cellular signalling events. Here, we show that propranolol is also an inhibitor of protein kinase ...

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A rapid sensitive assay for phosphatidate phosphohydrolase.

For a purified preparation of the soluble form of phosphatidate phosphohydrolase (EC 3.1.3.4) from guinea pig cerebral cortex, I-O-alkyl-racglycerol 3-phosphate was found to be accepted as a substrate. This substrate analog was tritium-labeled in order to serve in a rapid sensitive assay for the enzyme, in which labeled I-alkyl glycerol is released. Heat denaturation and enzyme activity depende...

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Phosphatidate phosphohydrolase and the regulation of glycerolipid biosynthesis.

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ژورنال

عنوان ژورنال: Journal of Biological Chemistry

سال: 1992

ISSN: 0021-9258

DOI: 10.1016/s0021-9258(19)88727-6