Structural highlights
Function
[PP4R3_DROME] Regulatory subunit of serine/threonine-protein phosphatase 4. The probable PP4 complex Pp4-19C-PPP4R2r-flfl (PPP4C-PPP4R2-PPP4R3) is required to prevent caspase induced cell death (in vitro). May be involved in DNA damage repair. Key mediator specific for the localization of mira and associated cell fate determinants during both interphase and mitosis. Nuclear Flfl is required to exclude mira/pros from the nucleus when inefficiently bound to the cytoskeleton/cortex, whereas cytosolic or membrane-associated flfl is required for the cortical association and asymmetric localization of mira/pros/brat/stau at metaphase and anaphase.[1] [2] [3]
References
- ↑ Gingras AC, Caballero M, Zarske M, Sanchez A, Hazbun TR, Fields S, Sonenberg N, Hafen E, Raught B, Aebersold R. A novel, evolutionarily conserved protein phosphatase complex involved in cisplatin sensitivity. Mol Cell Proteomics. 2005 Nov;4(11):1725-40. Epub 2005 Aug 5. PMID:16085932 doi:http://dx.doi.org/M500231-MCP200
- ↑ Martin-Granados C, Philp A, Oxenham SK, Prescott AR, Cohen PT. Depletion of protein phosphatase 4 in human cells reveals essential roles in centrosome maturation, cell migration and the regulation of Rho GTPases. Int J Biochem Cell Biol. 2008;40(10):2315-32. Epub 2008 Apr 8. PMID:18487071 doi:http://dx.doi.org/S1357-2725(08)00147-7
- ↑ Sousa-Nunes R, Chia W, Somers WG. Protein phosphatase 4 mediates localization of the Miranda complex during Drosophila neuroblast asymmetric divisions. Genes Dev. 2009 Feb 1;23(3):359-72. doi: 10.1101/gad.1723609. PMID:19204120 doi:http://dx.doi.org/10.1101/gad.1723609
