Title : Plasma membrane associated phospholipase C from human platelets: synergistic stimulation of phosphatidylinositol 4,5-bisphosphate hydrolysis by thrombin and guanosine 5'-O-(3-thiotriphosphate).

Pub. Date : 1989 Jan 10

PMID : 2539864






4 Functional Relationships(s)
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1 Plasma membrane associated phospholipase C from human platelets: synergistic stimulation of phosphatidylinositol 4,5-bisphosphate hydrolysis by thrombin and guanosine 5"-O-(3-thiotriphosphate). Phosphatidylinositol 4,5-Diphosphate coagulation factor II, thrombin Homo sapiens
2 At submicromolar calcium concentration, hydrolysis of exogenous phosphatidylinositol 4,5-bisphosphate (PIP2) by platelet membrane associated PLC was also markedly enhanced by GTP gamma S (100 microM) or GTP gamma S (1 microM) plus thrombin (1 unit/mL). Phosphatidylinositol 4,5-Diphosphate coagulation factor II, thrombin Homo sapiens
3 At submicromolar calcium concentration, hydrolysis of exogenous phosphatidylinositol 4,5-bisphosphate (PIP2) by platelet membrane associated PLC was also markedly enhanced by GTP gamma S (100 microM) or GTP gamma S (1 microM) plus thrombin (1 unit/mL). Phosphatidylinositol 4,5-Diphosphate coagulation factor II, thrombin Homo sapiens
4 Thrombin-induced hydrolysis of PIP2 was inhibited by treatment of the membranes with pertussis toxin or pretreatment of intact platelets with 12-O-tetradecanoyl-13-acetate (TPA) prior to preparation of membranes. Phosphatidylinositol 4,5-Diphosphate coagulation factor II, thrombin Homo sapiens