View source for 6cni


==Crystal structure of H105A PGAM5 dimer==
<StructureSection load='6cni' size='340' side='right'caption='[[6cni]], [[Resolution|resolution]] 1.70&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[6cni]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6CNI OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6CNI FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.7&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=NA:SODIUM+ION'>NA</scene>, <scene name='pdbligand=PO4:PHOSPHATE+ION'>PO4</scene></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=6cni FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6cni OCA], [https://pdbe.org/6cni PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6cni RCSB], [https://www.ebi.ac.uk/pdbsum/6cni PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6cni ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/PGAM5_HUMAN PGAM5_HUMAN] Displays phosphatase activity for serine/threonine residues, and, dephosphorylates and activates MAP3K5 kinase. Has apparently no phosphoglycerate mutase activity. May be regulator of mitochondrial dynamics. Substrate for a KEAP1-dependent ubiquitin ligase complex. Contributes to the repression of NFE2L2-dependent gene expression. Acts as a central mediator for programmed necrosis induced by TNF, by reactive oxygen species and by calcium ionophore.<ref>PMID:18387606</ref> <ref>PMID:19590015</ref> <ref>PMID:22265414</ref> 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
PGAM5 is a mitochondrial protein phosphatase whose genetic ablation in mice results in mitochondria-related disorders, including neurodegeneration. Functions of PGAM5 include regulation of mitophagy, cell death, metabolism and aging. However, mechanisms regulating PGAM5 activation and signaling are poorly understood. Using electron cryo-microscopy, we show that PGAM5 forms dodecamers in solution. We also present a crystal structure of PGAM5 that reveals the determinants of dodecamer formation. Furthermore, we observe PGAM5 dodecamer assembly into filaments both in vitro and in cells. We find that PGAM5 oligomerization into a dodecamer is not only essential for catalytic activation, but this form also plays a structural role on mitochondrial membranes, which is independent of phosphatase activity. Together, these findings suggest that modulation of the oligomerization of PGAM5 may be a regulatory switch of potential therapeutic interest.

Functional role of PGAM5 multimeric assemblies and their polymerization into filaments.,Ruiz K, Thaker TM, Agnew C, Miller-Vedam L, Trenker R, Herrera C, Ingaramo M, Toso D, Frost A, Jura N Nat Commun. 2019 Jan 31;10(1):531. doi: 10.1038/s41467-019-08393-w. PMID:30705304<ref>PMID:30705304</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 6cni" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Agnew C]]
[[Category: Jura N]]
[[Category: Ruiz K]]