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Current Medicinal Chemistry
ISSN (Print): 0929-8673
ISSN (Online): 1875-533X
VOLUME: 9
ISSUE: 22
DOI: 10.2174/0929867023368791      Price:  $58









Okadaic Acid: The Archetypal Serine / Threonine Protein Phosphatase Inhibitor

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Author(s): A. B. Dounay and C. J. Forsyth
Pages 1939-1980 (42)
Abstract:
As the first recognized member of the “okadaic acid class” of phosphatase inhibitors, the marine natural product okadaic acid is perhaps the most well-known member of a diverse array of secondary metabolites that have emerged as valuable probes for studying the roles of various cellular protein serine / threonine phosphatases. This review provides a historical perspective on the role that okadaic acid has played in stimulating a broad spectrum of modern scientific research as a result of the natural products ability to bind to and inhibit important classes of protein serine / threonine phosphatases. The relationships between the structure and biological activities of okadaic acid are briefly reviewed, as well as the structural information regarding the particular cellular receptors protein phosphatases 1 (PP1) and 2A. Laboratory syntheses of okadaic acid and its analogs are thoroughly reviewed. Finally, an interpretation of the critical contacts observed between okadaic acid and PP1 by X-ray crystallography is provided, and specific molecular recognition hypotheses that are testable via the synthesis and assay of non-natural analogs of okadaic acid are suggested.
Keywords:
Okadaic Acid, threonine phosphatases, crystallography
Affiliation:
Department of Chemistry, University of Minnesota, Minneapolis, Minnesota, 55455, USA