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==CRYSTAL STRUCTURE OF THE PTPN4 PDZ DOMAIN COMPLEXED WITH THE PDZ BINDING MOTIF OF THE MITOGEN ACTIVATED PROTEIN KINASE P38GAMMA.== | |||
<StructureSection load='5ez0' size='340' side='right' caption='[[5ez0]], [[Resolution|resolution]] 2.35Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[5ez0]] is a 8 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5EZ0 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5EZ0 FirstGlance]. <br> | |||
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr> | |||
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[5eyz|5eyz]], [[3nfk|3nfk]], [[3nfl|3nfl]]</td></tr> | |||
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Protein-tyrosine-phosphatase Protein-tyrosine-phosphatase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.1.3.48 3.1.3.48] </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=5ez0 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5ez0 OCA], [http://pdbe.org/5ez0 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5ez0 RCSB], [http://www.ebi.ac.uk/pdbsum/5ez0 PDBsum]</span></td></tr> | |||
</table> | |||
== Function == | |||
[[http://www.uniprot.org/uniprot/PTN4_HUMAN PTN4_HUMAN]] May act at junctions between the membrane and the cytoskeleton. | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
The human protein tyrosine phosphatase non-receptor type 4 (PTPN4) prevents cell death induction in neuroblastoma and glioblastoma cell lines in a PDZ-PDZ binding motifs (PBMs) dependent manner but the cellular partners of PTPN4 involved in cell protection are unknown. Here, we described the Mitogen-Activated protein kinase p38gamma as a cellular partner of PTPN4. The main contribution to the p38gamma:PTPN4 complex formation is the tight interaction between the C-terminus of p38gamma and the PDZ domain of PTPN4. We solved the crystal structure of the PDZ domain of PTPN4 bound to the p38gamma C-terminus. We identified the molecular basis of recognition of the C-terminal sequence of p38gamma that displays the highest affinity amongst all endogenous partners of PTPN4. We showed that the p38gamma C-terminus is also an efficient inducer of cell death after its intracellular delivery. In addition to recruiting the kinase, the binding of the C-terminal sequence of p38gamma to PTPN4 abolishes the catalytic auto-inhibition of PTPN4 and thus activates the phosphatase that can efficiently dephosphorylate the activation loop of p38gamma. We presume that the p38gamma-PTPN4 interaction promotes cellular signaling preventing cell death induction. | |||
Molecular Basis of The Interaction of the Human Protein Tyrosine Phosphatase Non-receptor Type 4 (PTPN4) with the Mitogen-Activated Protein Kinase p38gamma.,Maisonneuve P, Caillet-Saguy C, Vaney MC, Edoo BZ, Sawyer K, Raynal B, Delepierre M, Lafon M, Cordier F, Wolff N J Biol Chem. 2016 May 31. pii: jbc.M115.707208. PMID:27246854<ref>PMID:27246854</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
[[Category: | </div> | ||
[[Category: | <div class="pdbe-citations 5ez0" style="background-color:#fffaf0;"></div> | ||
[[Category: | == References == | ||
[[Category: | <references/> | ||
[[Category: | __TOC__ | ||
[[Category: | </StructureSection> | ||
[[Category: | [[Category: Protein-tyrosine-phosphatase]] | ||
[[Category: | [[Category: CAILLET-SAGUY, C]] | ||
[[Category: CORDIER, F]] | |||
[[Category: DELEPIERRE, M]] | |||
[[Category: LAFON, M]] | |||
[[Category: MAISONNEUVE, P]] | |||
[[Category: VANEY, M C]] | |||
[[Category: WOLFF, N]] | |||
[[Category: Apoptosis]] | |||
[[Category: Cell death]] | |||
[[Category: Glioblastoma]] | |||
[[Category: Mitogen activated protein kinase]] | |||
[[Category: Multiprotein complex]] | |||
[[Category: Non-receptor type 4]] | |||
[[Category: P38gamma]] | |||
[[Category: Pdz binding motif]] | |||
[[Category: Pdz domain]] | |||
[[Category: Protein binding]] | |||
[[Category: Ptpn4]] | |||
[[Category: Rabies virus]] |