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Protein phosphatase

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* '''PP1''' is a serine/threonine phosphatase and is a key component of the insulin signaling pathway<ref>PMID:9609113</ref>.<br />
* '''PP1''' is a serine/threonine phosphatase and is a key component of the insulin signaling pathway<ref>PMID:9609113</ref>.<br />
* '''PP2A''' targets proteins in the oncogenic signaling pathways<ref>PMID:11812651</ref>. For PP2A see also [[HEAT Repeat]].<br />
* '''PP2A''' targets proteins in the oncogenic signaling pathways<ref>PMID:11812651</ref>. For PP2A see also [[HEAT Repeat]].<br />
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* '''PP2C''' are Mg/Mn- dependent and are essential for the regulation of cell cycle and stress signaling pathways<ref>PMID:8528769</ref>. For details see [[ABA-regulated Protein Phosphatase 2C]].<br />
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* '''PP2C''' are Mg/Mn- dependent and are essential for the regulation of cell cycle and stress signaling pathways. For details see [[ABA-regulated Protein Phosphatase 2C]].<br />
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* '''PP4''' regulates a variety of cellular functions<ref>PMID:8528769</ref>.<br />
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* '''PP4''' regulates a variety of cellular functions<ref>PMID:25562660</ref>.<br />
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* '''PP5''' is activated by lipids and is involved in signal transduction<ref>PMID:8528769</ref>.
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* '''PP5''' is activated by lipids and is involved in signal transduction<ref>PMID:11137038</ref>.
== Disease ==
== Disease ==
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Mutations in PP2A are found in many solid cancers and leukemias. PP2A-activating drugs are possible candidates for cancer therapeutics protocols<ref>PMID:8528769</ref>. Development of Alzheimer disease drugs could be based on restoration of PP2A activity<ref>PMID:21605044</ref>.
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Mutations in PP2A are found in many solid cancers and leukemias. PP2A-activating drugs are possible candidates for cancer therapeutics protocols<ref>PMID:23639323</ref>. Development of Alzheimer disease drugs could be based on restoration of PP2A activity<ref>PMID:21605044</ref>.
== 3D Structures of protein phosphatase==
== 3D Structures of protein phosphatase==

Revision as of 09:27, 18 July 2016

Template:STRUCTURE 3k7v

Protein phosphatases (PP) regular protein phosphorylation and thus are key in intracellular signal transduction processes.

  • PP1 is a serine/threonine phosphatase and is a key component of the insulin signaling pathway[1].
  • PP2A targets proteins in the oncogenic signaling pathways[2]. For PP2A see also HEAT Repeat.
  • PP2C are Mg/Mn- dependent and are essential for the regulation of cell cycle and stress signaling pathways. For details see ABA-regulated Protein Phosphatase 2C.
  • PP4 regulates a variety of cellular functions[3].
  • PP5 is activated by lipids and is involved in signal transduction[4].

Disease

Mutations in PP2A are found in many solid cancers and leukemias. PP2A-activating drugs are possible candidates for cancer therapeutics protocols[5]. Development of Alzheimer disease drugs could be based on restoration of PP2A activity[6].

3D Structures of protein phosphatase

Updated on 18-July-2016

References

  1. ↑ Ragolia L, Begum N. Protein phosphatase-1 and insulin action. Mol Cell Biochem. 1998 May;182(1-2):49-58. PMID:9609113
  2. ↑ Resjo S, Goransson O, Harndahl L, Zolnierowicz S, Manganiello V, Degerman E. Protein phosphatase 2A is the main phosphatase involved in the regulation of protein kinase B in rat adipocytes. Cell Signal. 2002 Mar;14(3):231-8. PMID:11812651
  3. ↑ Lipinszki Z, Lefevre S, Savoian MS, Singleton MR, Glover DM, Przewloka MR. Centromeric binding and activity of Protein Phosphatase 4. Nat Commun. 2015 Jan 6;6:5894. doi: 10.1038/ncomms6894. PMID:25562660 doi:http://dx.doi.org/10.1038/ncomms6894
  4. ↑ Chinkers M. Protein phosphatase 5 in signal transduction. Trends Endocrinol Metab. 2001 Jan-Feb;12(1):28-32. PMID:11137038
  5. ↑ Perrotti D, Neviani P. Protein phosphatase 2A: a target for anticancer therapy. Lancet Oncol. 2013 May;14(6):e229-38. doi: 10.1016/S1470-2045(12)70558-2. PMID:23639323 doi:http://dx.doi.org/10.1016/S1470-2045(12)70558-2
  6. ↑ Rudrabhatla P, Pant HC. Role of protein phosphatase 2A in Alzheimer's disease. Curr Alzheimer Res. 2011 Sep;8(6):623-32. PMID:21605044
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