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Okadaic acid: a new probe for the study of cellular regulation
P Cohen1, C F Holmes, Y Tsukitani
1Department of Biochemistry, University of Dundee, UK.
Trends in Biochemical Sciences
|March 1, 1990
Abstract:
The tumour promoter okadaic acid is a potent and specific inhibitor of protein phosphatases 1 and 2A. Here we review recent studies which demonstrate that this toxin is extremely useful for identifying biological processes that are controlled through the reversible phosphorylation of proteins.
Insights
Okadaic acid, a protein phosphatase inhibitor, is a valuable tool for studying cellular processes. This toxin helps identify biological pathways regulated by protein phosphorylation.
Area of Science:
- Biochemistry
- Cell Biology
- Molecular Biology
Background:
- Okadaic acid is a known tumor promoter.
- It acts as a potent and specific inhibitor of protein phosphatases 1 and 2A (PP1 and PP2A).
Purpose of the Study:
- To review recent studies utilizing okadaic acid.
- To highlight its utility in identifying biological processes regulated by protein phosphorylation.
Main Methods:
- Review of existing scientific literature.
- Analysis of experimental data employing okadaic acid.
Main Results:
- Okadaic acid effectively inhibits protein phosphatases 1 and 2A.
- Studies demonstrate its usefulness in dissecting signaling pathways.
- Identifies biological processes controlled by reversible protein phosphorylation.
Conclusions:
- Okadaic acid is an indispensable research tool.
- Its specificity for PP1 and PP2A allows for precise investigation of phosphorylation-dependent mechanisms.
- Facilitates the understanding of cellular regulation.