This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.

Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.

5muf

From Proteopedia

(Difference between revisions)

Jump to: navigation, search

Revision as of 07:29, 19 August 2020

Crystal structure of human phosphoglycerate mutase family member 5 (PGAM5) in its enzymatically active dodecameric form induced by the presence of the N-terminal WDPNWD motif

Structural highlights

5muf is a 3 chain structure. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Related:	3o0t, 3mxo
Activity:	Phosphoprotein phosphatase, with EC number 3.1.3.16
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[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.^[1] ^[2] ^[3]

Publication Abstract from PubMed

PGAM5 is a mitochondrial membrane protein that functions as an atypical Ser/Thr phosphatase and is a regulator of oxidative stress response, necroptosis, and autophagy. Here we present several crystal structures of PGAM5 including the activating N-terminal regulatory sequences, providing a model for structural plasticity, dimerization of the catalytic domain, and the assembly into an enzymatically active dodecameric form. Oligomeric states observed in structures were supported by hydrogen exchange mass spectrometry, size-exclusion chromatography, and analytical ultracentrifugation experiments in solution. We report that the catalytically important N-terminal WDPNWD motif acts as a structural integrator assembling PGAM5 into a dodecamer, allosterically activating the phosphatase by promoting an ordering of the catalytic loop. Additionally the observed active site plasticity enabled visualization of essential conformational rearrangements of catalytic elements. The comprehensive biophysical characterization offers detailed structural models of this key mitochondrial phosphatase that has been associated with the development of diverse diseases.

Structures of PGAM5 Provide Insight into Active Site Plasticity and Multimeric Assembly.,Chaikuad A, Filippakopoulos P, Marcsisin SR, Picaud S, Schroder M, Sekine S, Ichijo H, Engen JR, Takeda K, Knapp S Structure. 2017 Jul 5;25(7):1089-1099.e3. doi: 10.1016/j.str.2017.05.020. Epub, 2017 Jun 22. PMID:28648608^[4]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Lo SC, Hannink M. PGAM5 tethers a ternary complex containing Keap1 and Nrf2 to mitochondria. Exp Cell Res. 2008 May 1;314(8):1789-803. doi: 10.1016/j.yexcr.2008.02.014. Epub , 2008 Mar 5. PMID:18387606 doi:http://dx.doi.org/10.1016/j.yexcr.2008.02.014
↑ Takeda K, Komuro Y, Hayakawa T, Oguchi H, Ishida Y, Murakami S, Noguchi T, Kinoshita H, Sekine Y, Iemura S, Natsume T, Ichijo H. Mitochondrial phosphoglycerate mutase 5 uses alternate catalytic activity as a protein serine/threonine phosphatase to activate ASK1. Proc Natl Acad Sci U S A. 2009 Jul 28;106(30):12301-5. Epub 2009 Jul 9. PMID:19590015 doi:http://dx.doi.org/0901823106
↑ Wang Z, Jiang H, Chen S, Du F, Wang X. The mitochondrial phosphatase PGAM5 functions at the convergence point of multiple necrotic death pathways. Cell. 2012 Jan 20;148(1-2):228-43. doi: 10.1016/j.cell.2011.11.030. PMID:22265414 doi:http://dx.doi.org/10.1016/j.cell.2011.11.030
↑ Chaikuad A, Filippakopoulos P, Marcsisin SR, Picaud S, Schroder M, Sekine S, Ichijo H, Engen JR, Takeda K, Knapp S. Structures of PGAM5 Provide Insight into Active Site Plasticity and Multimeric Assembly. Structure. 2017 Jul 5;25(7):1089-1099.e3. doi: 10.1016/j.str.2017.05.020. Epub, 2017 Jun 22. PMID:28648608 doi:http://dx.doi.org/10.1016/j.str.2017.05.020

1 Structural highlights
2 Function
3 Publication Abstract from PubMed
4 See Also
5 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/5muf"

@@ Line 1: / Line 1: @@
 ==Crystal structure of human phosphoglycerate mutase family member 5 (PGAM5) in its enzymatically active dodecameric form induced by the presence of the N-terminal WDPNWD motif==
-<StructureSection load='5muf' size='340' side='right' caption='[[5muf]], [[Resolution|resolution]] 3.10&Aring;' scene=''>
+<StructureSection load='5muf' size='340' side='right'caption='[[5muf]], [[Resolution|resolution]] 3.10&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[5muf]] is a 3 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5MUF OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5MUF FirstGlance]. <br>
+<table><tr><td colspan='2'>[[5muf]] is a 3 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5MUF OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=5MUF FirstGlance]. <br>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=PO4:PHOSPHATE+ION'>PO4</scene></td></tr>
+</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=PO4:PHOSPHATE+ION'>PO4</scene></td></tr>
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3o0t|3o0t]], [[3mxo|3mxo]]</td></tr>
 <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Phosphoprotein_phosphatase Phosphoprotein phosphatase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.1.3.16 3.1.3.16] </span></td></tr>
-<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5muf FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5muf OCA], [http://pdbe.org/5muf PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5muf RCSB], [http://www.ebi.ac.uk/pdbsum/5muf PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5muf ProSAT]</span></td></tr>
+<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=5muf FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5muf OCA], [http://pdbe.org/5muf PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5muf RCSB], [http://www.ebi.ac.uk/pdbsum/5muf PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5muf ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 22: / Line 22: @@
 ==See Also==
-*[[Serine/threonine protein phosphatase|Serine/threonine protein phosphatase]]
+*[[Protein phosphatase 3D structures|Protein phosphatase 3D structures]]
 == References ==
 <references/>
 __TOC__
 </StructureSection>
+[[Category: Large Structures]]
 [[Category: Phosphoprotein phosphatase]]
 [[Category: Alfano, I]]

5muf

From Proteopedia

Revision as of 07:29, 19 August 2020

Crystal structure of human phosphoglycerate mutase family member 5 (PGAM5) in its enzymatically active dodecameric form induced by the presence of the N-terminal WDPNWD motif

Structural highlights

Function

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

Personal tools

Navigation

Search

Toolbox