| Literature DB >> 3018731 |
H Ishii, T M Connolly, T E Bross, P W Majerus.
Abstract
Cleavage of polyphosphoinositides in vitro by phospholipase C results in formation of both cyclic and noncyclic inositol phosphates. We have now isolated the cyclic product of phosphatidylinositol 4,5-bisphosphate cleavage, inositol 1,2(cyclic)-4,5-triphosphate [cIns(1:2,4,5)P3], from thrombin-treated platelets. We found 0.2-0.4 nmol of cIns-(1:2,4,5)P3 per 10(9) platelets at 10 sec after thrombin; none was found in unstimulated platelets or in platelets 10 min after thrombin addition. We conclude that cIns(1:2,4,5)P3 is a major product of polyphosphoinositide metabolism in thrombin-stimulated platelets.Entities:
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Year: 1986 PMID: 3018731 PMCID: PMC386510 DOI: 10.1073/pnas.83.17.6397
Source DB: PubMed Journal: Proc Natl Acad Sci U S A ISSN: 0027-8424 Impact factor: 11.205