Title : Stimulation of polyphosphoinositide hydrolysis by thrombin in membranes from human fibroblasts.

Pub. Date : 1987 Jul 1

PMID : 2822018






3 Functional Relationships(s)
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1 PLC activation by thrombin was dependent on GTP, and was completely inhibited by a 15-fold excess of the non-hydrolysable GDP analogue guanosine 5"-[beta-thio]diphosphate (GDP[S]). Guanosine Triphosphate coagulation factor II, thrombin Homo sapiens
2 It is concluded that an early post-receptor effect of thrombin is the activation of a Ca2+- and GTP-dependent membrane-associated PLC that specifically cleaves PIP2 and PIP. Guanosine Triphosphate coagulation factor II, thrombin Homo sapiens
3 This result suggests that the cell-surface receptor for thrombin is coupled to a polyphosphoinositide-specific PLC by a GTP-binding protein that regulates PLC activity by increasing its sensitivity to Ca2+. Guanosine Triphosphate coagulation factor II, thrombin Homo sapiens