Protein Phosphatases of S. cerevisiae
Sarah R. Offley and Martin C. SchmidtDepartment of Microbiology and Molecular Genetics
University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
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Protein Phosphatases of S. cerevisiaeSarah R. Offley and Martin C. SchmidtDepartment of Microbiology and Molecular Genetics University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA |
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| The phosphorylation status of a protein is highly regulated and is determined by the opposing activities of protein kinases and protein phosphatases within the cell. While much is known about the protein kinases found in Saccharomyces cerevisiae, the protein phosphatases are much less characterized. Of the 127 protein kinases in yeast, over 90% are in the same evolutionary lineage. In contrast, protein phosphatases are fewer in number (only 43 have been identi ed in yeast) and comprise multiple, distinct evolutionary lineages. Here we review the protein phosphatase families of yeast with regard to structure, catalytic mechanism, regulation, and signal transduction participation. |
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