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3wtf

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==Structure of PAXX==
==Structure of PAXX==
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<StructureSection load='3wtf' size='340' side='right' caption='[[3wtf]], [[Resolution|resolution]] 3.45&Aring;' scene=''>
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<StructureSection load='3wtf' size='340' side='right'caption='[[3wtf]], [[Resolution|resolution]] 3.45&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>[[3wtf]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3WTF OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3WTF FirstGlance]. <br>
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<table><tr><td colspan='2'>[[3wtf]] 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=3WTF OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3WTF FirstGlance]. <br>
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</td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3wtd|3wtd]]</td></tr>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 3.451&#8491;</td></tr>
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<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=3wtf FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3wtf OCA], [http://pdbe.org/3wtf PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3wtf RCSB], [http://www.ebi.ac.uk/pdbsum/3wtf PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3wtf ProSAT]</span></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=3wtf FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3wtf OCA], [https://pdbe.org/3wtf PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3wtf RCSB], [https://www.ebi.ac.uk/pdbsum/3wtf PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3wtf ProSAT]</span></td></tr>
</table>
</table>
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== Function ==
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[https://www.uniprot.org/uniprot/PAXX_HUMAN PAXX_HUMAN] Non-essential DNA repair protein involved in DNA non-homologous end joining (NHEJ); participates in double-strand break (DSB) repair and V(D)J recombination (PubMed:25574025, PubMed:25670504, PubMed:25941166, PubMed:27705800). May act as a scaffold required for accumulation of the Ku heterodimer, composed of XRCC5/Ku80 and XRCC6/Ku70, at double-strand break sites and promote the assembly and/or stability of the NHEJ machinery (PubMed:25574025, PubMed:25670504, PubMed:25941166). Involved in NHEJ by promoting the ligation of blunt-ended DNA ends (PubMed:27703001). Together with NHEJ1/XLF, collaborates with DNA polymerase lambda (POLL) to promote joining of non-cohesive DNA ends (PubMed:30250067, PubMed:25670504). Constitutes a non-essential component of classical NHEJ: has a complementary but distinct function with NHEJ1/XLF in DNA repair (PubMed:27705800). Able to restrict infection by herpesvirus 1 (HSV-1) via an unknown mechanism (PubMed:29144403).<ref>PMID:25574025</ref> <ref>PMID:25670504</ref> <ref>PMID:25941166</ref> <ref>PMID:27703001</ref> <ref>PMID:27705800</ref> <ref>PMID:29144403</ref> <ref>PMID:30250067</ref>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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XRCC4 and XLF are two structurally related proteins that function in DNA double-strand break (DSB) repair. Here, we identify human PAXX (PAralog of XRCC4 and XLF, also called C9orf142) as a new XRCC4 superfamily member and show that its crystal structure resembles that of XRCC4. PAXX interacts directly with the DSB-repair protein Ku and is recruited to DNA-damage sites in cells. Using RNA interference and CRISPR-Cas9 to generate PAXX(-/-) cells, we demonstrate that PAXX functions with XRCC4 and XLF to mediate DSB repair and cell survival in response to DSB-inducing agents. Finally, we reveal that PAXX promotes Ku-dependent DNA ligation in vitro and assembly of core nonhomologous end-joining (NHEJ) factors on damaged chromatin in cells. These findings identify PAXX as a new component of the NHEJ machinery.
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DNA repair. PAXX, a paralog of XRCC4 and XLF, interacts with Ku to promote DNA double-strand break repair.,Ochi T, Blackford AN, Coates J, Jhujh S, Mehmood S, Tamura N, Travers J, Wu Q, Draviam VM, Robinson CV, Blundell TL, Jackson SP Science. 2015 Jan 9;347(6218):185-188. doi: 10.1126/science.1261971. PMID:25574025<ref>PMID:25574025</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 3wtf" style="background-color:#fffaf0;"></div>
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== References ==
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<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
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[[Category: Blundell, T L]]
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[[Category: Homo sapiens]]
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[[Category: Ochi, T]]
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[[Category: Large Structures]]
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[[Category: Dna repair]]
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[[Category: Blundell TL]]
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[[Category: Immune system]]
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[[Category: Ochi T]]
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[[Category: Scaffold]]
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Current revision

Structure of PAXX

PDB ID 3wtf

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