Encyclopedia of Signaling Molecules

2012 Edition
| Editors: Sangdun Choi

PP2C

Reference work entry
DOI: https://doi.org/10.1007/978-1-4419-0461-4_249

Synonyms

Historical Background

Protein phosphatase 2C (PP2C) was first defined as magnesium (or manganese)-dependent Ser/Thr-specific dephosphorylation activity in mammalian tissue extract (Cohen 1989). This activity was also found to be resistant to okadaic acid, a potent inhibitor of Ser/Thr-phosphatases. Because of its cation dependency, PP2C is sometimes referred as PPM (protein phosphatase, magnesium or manganese dependent). Genes encoding PP2C were subsequently isolated from yeast to humans, revealing a conserved protein phosphatase family with no apparent sequence similarity to the other Ser/Thr-phosphatases such as PP1, PP2A, and PP2B. It is also notable that eukaryotic species have more genes encoding for PP2C than those for the other Ser/Thr-phosphatase families. For example, the budding yeast Saccharomyces cerevisiae and the fission yeast Schizosaccharomyces pombe, have seven and six PP2C...

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Copyright information

© Springer Science+Business Media, LLC 2012

Authors and Affiliations

  1. 1.Graduate School of Biological SciencesNara Institute of Science and TechnologyIkomaJapan
  2. 2.Department of MicrobiologyUniversity of California, DavisDavisUSA