Difference between revisions of "Phosphatase Gene PPM1E"
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[[Phosphatase_Gene_PPM1E|PPM1E]] (also known as [http://www.ncbi.nlm.nih.gov/gene/22843 POXP1, PP2CH, caMKN, CaMKP-N]). The encoded protein is localized to the nucleus and dephosphorylates and inactivates multiple substrates including serine/threonine-protein kinase PAK 1, 5'-AMP-activated protein kinase (AMPK) and the multifunctional calcium/calmodulin-dependent protein kinases. Alternatively spliced transcript variants have been observed for this gene. [provided by RefSeq, May 2012] | [[Phosphatase_Gene_PPM1E|PPM1E]] (also known as [http://www.ncbi.nlm.nih.gov/gene/22843 POXP1, PP2CH, caMKN, CaMKP-N]). The encoded protein is localized to the nucleus and dephosphorylates and inactivates multiple substrates including serine/threonine-protein kinase PAK 1, 5'-AMP-activated protein kinase (AMPK) and the multifunctional calcium/calmodulin-dependent protein kinases. Alternatively spliced transcript variants have been observed for this gene. [provided by RefSeq, May 2012] | ||
| − | PPM1E and another phosphatase of this subfamily [[Phosphatase_Gene_PPM1F|PPM1F]] (also known as [http://www.ncbi.nlm.nih.gov/gene/9647 POXP2, CAMKP, FEM-2, hFEM-2, CaMKPase]) dephosphorylate and regulate multifunctional Ca(2+)/calmodulin-dependent protein kinases (CaMKs) <cite>Takeuchi01</cite> | + | PPM1E and another phosphatase of this subfamily [[Phosphatase_Gene_PPM1F|PPM1F]] (also known as [http://www.ncbi.nlm.nih.gov/gene/9647 POXP2, CAMKP, FEM-2, hFEM-2, CaMKPase]) dephosphorylate and regulate multifunctional Ca(2+)/calmodulin-dependent protein kinases (CaMKs). PPM1E dephosphorylates CaMKIV and nuclear CaMKII, whereas PPM1F dephosphorylates CaMKI and cytosolic CaMKII. their localizations are different <cite>Takeuchi01</cite>. PPM1E is localized in the nucleus, whereas PPM1F is localized in the cytosol. PPM1E contains two NLSs, NLS1 and NLS2, at the C-terminus. A cluster of basic residues in the NLSs is important for their function. NLS1 and NLS2 function independently, but mutagenesis analysis suggests that these NLSs interact with each other <cite>Takeuchi04</cite>. |
Revision as of 04:06, 6 May 2014
Phosphatase Classification: Superfamily PPM (PP2C): Family PPM (PP2C): Subfamily PPM1E: Gene PPM1E
PPM1E (also known as POXP1, PP2CH, caMKN, CaMKP-N). The encoded protein is localized to the nucleus and dephosphorylates and inactivates multiple substrates including serine/threonine-protein kinase PAK 1, 5'-AMP-activated protein kinase (AMPK) and the multifunctional calcium/calmodulin-dependent protein kinases. Alternatively spliced transcript variants have been observed for this gene. [provided by RefSeq, May 2012]
PPM1E and another phosphatase of this subfamily PPM1F (also known as POXP2, CAMKP, FEM-2, hFEM-2, CaMKPase) dephosphorylate and regulate multifunctional Ca(2+)/calmodulin-dependent protein kinases (CaMKs). PPM1E dephosphorylates CaMKIV and nuclear CaMKII, whereas PPM1F dephosphorylates CaMKI and cytosolic CaMKII. their localizations are different [1]. PPM1E is localized in the nucleus, whereas PPM1F is localized in the cytosol. PPM1E contains two NLSs, NLS1 and NLS2, at the C-terminus. A cluster of basic residues in the NLSs is important for their function. NLS1 and NLS2 function independently, but mutagenesis analysis suggests that these NLSs interact with each other [2].
References
- Takeuchi M, Ishida A, Kameshita I, Kitani T, Okuno S, and Fujisawa H. Identification and characterization of CaMKP-N, nuclear calmodulin-dependent protein kinase phosphatase. J Biochem. 2001 Dec;130(6):833-40. DOI:10.1093/oxfordjournals.jbchem.a003055 |
- Takeuchi M, Taniguchi T, and Fujisawa H. Identification and characterization of nuclear localization signals of CaMKP-N. J Biochem. 2004 Aug;136(2):183-8. DOI:10.1093/jb/mvh109 |
