Protein phosphatase: Difference between revisions

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'''Protein phosphatases''' (PP) regular protein phosphorylation and thus are key in intracellular signal transduction processes.<br />
'''Protein phosphatases''' (PP) regular protein phosphorylation and thus are key in intracellular signal transduction processes.<br />
*  '''PP1''' is a serine/threonine phosphatase.<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. 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 />
*  '''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 />
*  '''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 />
*  '''PP4''' regulates a variety of cellular functions.<br />
*  '''PP4''' regulates a variety of cellular functions<ref>PMID:8528769</ref>.<br />
*  '''PP5''' is activated by lipids and is involved in signal transduction.   
*  '''PP5''' is activated by lipids and is involved in signal transduction<ref>PMID:8528769</ref>.   
 
== Disease ==
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>.


== 3D Structures of protein phosphatase==
== 3D Structures of protein phosphatase==
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== References ==
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[[Category:Topic Page]]
[[Category:Topic Page]]

Revision as of 12:21, 18 July 2016

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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[3]. For details see ABA-regulated Protein Phosphatase 2C.
  • PP4 regulates a variety of cellular functions[4].
  • PP5 is activated by lipids and is involved in signal transduction[5].

DiseaseDisease

Mutations in PP2A are found in many solid cancers and leukemias. PP2A-activating drugs are possible candidates for cancer therapeutics protocols[6]. Development of Alzheimer disease drugs could be based on restoration of PP2A activity[7].

3D Structures of protein phosphatase3D Structures of protein phosphatase

Updated on 18-July-2016

ReferencesReferences

  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. White SH, Wimley WC, Selsted ME. Structure, function, and membrane integration of defensins. Curr Opin Struct Biol. 1995 Aug;5(4):521-7. PMID:8528769
  4. White SH, Wimley WC, Selsted ME. Structure, function, and membrane integration of defensins. Curr Opin Struct Biol. 1995 Aug;5(4):521-7. PMID:8528769
  5. White SH, Wimley WC, Selsted ME. Structure, function, and membrane integration of defensins. Curr Opin Struct Biol. 1995 Aug;5(4):521-7. PMID:8528769
  6. White SH, Wimley WC, Selsted ME. Structure, function, and membrane integration of defensins. Curr Opin Struct Biol. 1995 Aug;5(4):521-7. PMID:8528769
  7. Rudrabhatla P, Pant HC. Role of protein phosphatase 2A in Alzheimer's disease. Curr Alzheimer Res. 2011 Sep;8(6):623-32. PMID:21605044

Proteopedia Page Contributors and Editors (what is this?)Proteopedia Page Contributors and Editors (what is this?)

Michal Harel, Alexander Berchansky, Joel L. Sussman, Alexsandra Tifane Santos do Nascimento