Document Detail


Okadaic acid inhibits phosphatidylethanolamine biosynthesis in rat hepatocytes.
MedLine Citation:
PMID:  1311568     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Okadaic acid, a specific inhibitor of protein phosphatase 1 and 2A, inhibited the synthesis of phosphatidylethanolamine via the CDPethanolamine pathway in isolated hepatocytes. Pulse-chase experiments and measurement of the enzyme activity demonstrated that the inhibition of phosphatidylethanolamine synthesis was not caused by an inhibition of CTP:phosphoethanolamine cytidylyltransferase, the putative regulatory enzyme. However, okadaic acid decreased the cellular diacylglycerol level to 30% of that in control cells. The data suggest that the availability of diacylglycerol limits phosphatidylethanolamine synthesis in okadaic acid-treated hepatocytes.
Authors:
L B Tijburg; P S Vermeulen; M G Schmitz; L M van Golde
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Biochemical and biophysical research communications     Volume:  182     ISSN:  0006-291X     ISO Abbreviation:  Biochem. Biophys. Res. Commun.     Publication Date:  1992 Feb 
Date Detail:
Created Date:  1992-03-27     Completed Date:  1992-03-27     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  0372516     Medline TA:  Biochem Biophys Res Commun     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1226-31     Citation Subset:  IM    
Affiliation:
Laboratory of Veterinary Biochemistry, Utrecht University, The Netherlands.
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MeSH Terms
Descriptor/Qualifier:
Animals
Cells, Cultured
Ethanolamine
Ethanolamines / metabolism
Ethers, Cyclic / pharmacology*
Kinetics
Liver / drug effects,  metabolism*
Male
Okadaic Acid
Phosphatidylethanolamines / biosynthesis*
Phospholipids / biosynthesis*,  isolation & purification
Phosphoprotein Phosphatases / antagonists & inhibitors
Protein Phosphatase 1
Rats
Rats, Inbred Strains
Chemical
Reg. No./Substance:
0/Ethanolamines; 0/Ethers, Cyclic; 0/Phosphatidylethanolamines; 0/Phospholipids; 141-43-5/Ethanolamine; 78111-17-8/Okadaic Acid; EC 3.1.3.16/Phosphoprotein Phosphatases; EC 3.1.3.16/Protein Phosphatase 1

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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