In-Gel Protein Phosphatase Assays and Other Useful Methods for the Detection of Protein Phosphatase Activities

ISSN: 1875-5992 (Online)
ISSN: 1871-5206 (Print)

Volume 16, 12 Issues, 2016

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Anti-Cancer Agents in Medicinal Chemistry

Formerly: Current Medicinal Chemistry - Anti-Cancer Agents

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  • 27th of 59 in Chemistry, Medicinal

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Michelle Prudhomme
Universite Blaise Pascal - C.N.R.S
Aubiere Cedex

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In-Gel Protein Phosphatase Assays and Other Useful Methods for the Detection of Protein Phosphatase Activities

Anti-Cancer Agents in Medicinal Chemistry, 11(1): 47-53.

Author(s): Atsuhiko Ishida and Isamu Kameshita.

Affiliation: Laboratory of Molecular Brain Science, Graduate School of Integrated Arts and Sciences, Hiroshima University, 1-7-1 Kagamiyama, Higashi-Hiroshima 739-8521, Japan.


Intracellular signaling is governed by protein phosphorylation and dephosphorylation catalyzed by protein kinases and protein phosphatases, respectively. Since there is growing evidence that a variety of protein phosphatases are involved in the pathogenesis of various diseases, protein phosphatases have recently been the focus of intense research interest, not only in basic biology but also in clinical medicine. In the process of these studies, analytical methods for protein phosphatases will be of increasing importance. A major bottleneck in protein phosphatase assays is the selection and preparation of an efficient substrate for the phosphatase to be assayed. To circumvent this difficulty, a variety of protein phosphatase substrates have been devised during the development of novel assay techniques by which protein phosphatase activities can be readily detected. In this review, we focus on the methodology for detecting protein phosphatase activities, with special emphasis on in-gel protein phosphatase assays and related techniques. The utility and limitations of these methods are also discussed.


Electrophoresis, fluorescence, in-gel assay, peptide conjugate, phosphatase activity, serine/threonine phosphatase, synthetic phosphopeptide, tyrosine phosphatase, DUSPs, MKPs, VacA.

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Article Details

Volume: 11
Issue Number: 1
First Page: 47
Last Page: 53
Page Count: 7
DOI: 10.2174/187152011794941280

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