7aam

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==Crystal structure of the F-BAR domain of PSTIPIP1 bound to the CTH domain of the phosphatase LYP==
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<StructureSection load='7aam' size='340' side='right'caption='[[7aam]]' scene=''>
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<StructureSection load='7aam' size='340' side='right'caption='[[7aam]], [[Resolution|resolution]] 2.15&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id= OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol= FirstGlance]. <br>
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<table><tr><td colspan='2'>[[7aam]] is a 3 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=7AAM OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7AAM FirstGlance]. <br>
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</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=7aam FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7aam OCA], [https://pdbe.org/7aam PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7aam RCSB], [https://www.ebi.ac.uk/pdbsum/7aam PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7aam ProSAT]</span></td></tr>
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=GOL:GLYCEROL'>GOL</scene></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=7aam FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7aam OCA], [https://pdbe.org/7aam PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7aam RCSB], [https://www.ebi.ac.uk/pdbsum/7aam PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7aam ProSAT]</span></td></tr>
</table>
</table>
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== Disease ==
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[https://www.uniprot.org/uniprot/PPIP1_HUMAN PPIP1_HUMAN] Defects in PSTPIP1 are the cause of PAPA syndrome (PAPAS) [MIM:[https://omim.org/entry/604416 604416]; also known as pyogenic sterile arthritis, pyoderma gangrenosum and acne or familial recurrent arthritis (FRA). PAPAS is characterized by autosomal dominant inheritance of early onset, primarily affecting skin and joint tissues. Recurring inflammatory episodes lead to accumulation of sterile, pyogenic, neutrophil-rich material within the affected joints, ultimately resulting in significant destruction.<ref>PMID:14595024</ref> <ref>PMID:11971877</ref>
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== Function ==
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[https://www.uniprot.org/uniprot/PPIP1_HUMAN PPIP1_HUMAN] Involved in regulation of the actin cytoskeleton. May regulate the WAS actin-bundling activity. Bridges the interaction between ABL1 and PTPN18 leading to the ABL1 dephosphorylation. May play a role as a scaffold protein between PTPN12 and WAS and allows PTPN12 to dephosphorylate WAS. Has the potential to physically couple CD2 and CD2AP to WAS. Acts downstream of CD2 and CD2AP to recruit WAS to the T-cell:APC contact site so as to promote the actin polymerization required for synapse induction during T-cell activation (By similarity). Down-regulates CD2-stimulated adhesion through the coupling of PTPN12 to CD2.<ref>PMID:9857189</ref>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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Mutations in the adaptor protein PSTPIP1 cause a spectrum of autoinflammatory diseases, including PAPA and PAMI; however, the mechanism underlying these diseases remains unknown. Most of these mutations lie in PSTPIP1 F-BAR domain, which binds to LYP, a protein tyrosine phosphatase associated with arthritis and lupus. To shed light on the mechanism by which these mutations generate autoinflammatory disorders, we solved the structure of the F-BAR domain of PSTPIP1 alone and bound to the C-terminal homology segment of LYP, revealing a novel mechanism of recognition of Pro-rich motifs by proteins in which a single LYP molecule binds to the PSTPIP1 F-BAR dimer. The residues R228, D246, E250, and E257 of PSTPIP1 that are mutated in immunological diseases directly interact with LYP. These findings link the disruption of the PSTPIP1/LYP interaction to these diseases, and support a critical role for LYP phosphatase in their pathogenesis.
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PSTPIP1-LYP phosphatase interaction: structural basis and implications for autoinflammatory disorders.,Manso JA, Marcos T, Ruiz-Martin V, Casas J, Alcon P, Sanchez Crespo M, Bayon Y, de Pereda JM, Alonso A Cell Mol Life Sci. 2022 Feb 12;79(2):131. doi: 10.1007/s00018-022-04173-w. PMID:35152348<ref>PMID:35152348</ref>
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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<div class="pdbe-citations 7aam" style="background-color:#fffaf0;"></div>
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== References ==
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<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
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[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Large Structures]]
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[[Category: Z-disk]]
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[[Category: Alcon P]]
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[[Category: Alonso A]]
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[[Category: Bayon Y]]
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[[Category: Manso JA]]
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[[Category: De Pereda JM]]

Revision as of 06:53, 8 February 2023

Crystal structure of the F-BAR domain of PSTIPIP1 bound to the CTH domain of the phosphatase LYP

PDB ID 7aam

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