Identical subcellular distribution of palmitoyl-CoA and arachidonoyl-CoA synthetase activities in human blood platelets
- PMID: 2528345
- PMCID: PMC1138782
- DOI: 10.1042/bj2610071
Identical subcellular distribution of palmitoyl-CoA and arachidonoyl-CoA synthetase activities in human blood platelets
Abstract
Fractionation of human blood platelets showed that palmitoyl-CoA synthetase and arachidonoyl-CoA synthetase activities had an identical distribution among subcellular fractions. The activity was highest with arachidonic acid as substrate in all fractions, with an enzyme activity of 50 nmol/min per mg of protein, in a 'dense-tubular-system'-enriched fraction. The ratio activities with arachidonate and palmitate as substrates was about 1.5 in all fractions. Heat inactivation did not distinguish between arachidonoyl-CoA synthetase and a palmitoyl-CoA synthetase. On the other hand, heat inactivation indicated two pools of long-chain acyl-CoA synthetases: one in a mitochondria- and one in the dense-tubular-system-enriched fraction.
Similar articles
-
Identity between palmitoyl-CoA synthetase and arachidonoyl-CoA synthetase in human platelet?Biochem J. 1991 Feb 15;274 ( Pt 1)(Pt 1):145-52. doi: 10.1042/bj2740145. Biochem J. 1991. PMID: 1848073 Free PMC article.
-
Subcellular distribution and characteristics of ciprofibroyl-CoA synthetase in rat liver. Its possible identity with long-chain acyl-CoA synthetase.Biochem J. 1992 May 15;284 ( Pt 1)(Pt 1):283-7. doi: 10.1042/bj2840283. Biochem J. 1992. PMID: 1599407 Free PMC article.
-
Discovery of an arachidonoyl coenzyme A synthetase in human platelets.J Biol Chem. 1982 Apr 10;257(7):3510-5. J Biol Chem. 1982. PMID: 7061494
-
Intracellular localization of palmitoyl-CoA hydrolase and palmitoyl-CoA synthetase in human blood platelets and liver.Scand J Clin Lab Invest. 1980 May;40(3):271-8. doi: 10.3109/00365518009095578. Scand J Clin Lab Invest. 1980. PMID: 6108603
-
Control of arachidonate levels within inflammatory cells.Biochim Biophys Acta. 1996 Jan 5;1299(1):1-15. doi: 10.1016/0005-2760(95)00169-7. Biochim Biophys Acta. 1996. PMID: 8555241 Review. No abstract available.
Cited by
-
Identity between palmitoyl-CoA synthetase and arachidonoyl-CoA synthetase in human platelet?Biochem J. 1991 Feb 15;274 ( Pt 1)(Pt 1):145-52. doi: 10.1042/bj2740145. Biochem J. 1991. PMID: 1848073 Free PMC article.
-
The activity and subcellular distribution of the peroxisomal enzyme acyl-CoA oxidase in human blood platelets.Biochem J. 1992 Sep 15;286 ( Pt 3)(Pt 3):829-31. doi: 10.1042/bj2860829. Biochem J. 1992. PMID: 1417744 Free PMC article.
-
The activities of acyl-CoA:1-acyl-lysophospholipid acyltransferase(s) in human platelets.Biochem J. 1992 Dec 15;288 ( Pt 3)(Pt 3):763-70. doi: 10.1042/bj2880763. Biochem J. 1992. PMID: 1471991 Free PMC article.
-
Characterization of overt carnitine palmitoyltransferase in rat platelets; involvement of insulin on its regulation.Mol Cell Biochem. 1991 Apr 24;103(1):23-30. doi: 10.1007/BF00229590. Mol Cell Biochem. 1991. PMID: 1857344
-
The distribution and metabolism of arachidonate-containing phospholipids in cellular nuclei.Biochem J. 1998 Mar 1;330 ( Pt 2)(Pt 2):915-21. doi: 10.1042/bj3300915. Biochem J. 1998. PMID: 9480910 Free PMC article.
References
Publication types
MeSH terms
Substances
LinkOut - more resources
Full Text Sources