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3vu9

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==Crystal Structure of Psy3-Csm2 complex==
==Crystal Structure of Psy3-Csm2 complex==
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<StructureSection load='3vu9' size='340' side='right' caption='[[3vu9]], [[Resolution|resolution]] 1.75&Aring;' scene=''>
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<StructureSection load='3vu9' size='340' side='right'caption='[[3vu9]], [[Resolution|resolution]] 1.75&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>[[3vu9]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Baker's_yeast Baker's yeast]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3VU9 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3VU9 FirstGlance]. <br>
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<table><tr><td colspan='2'>[[3vu9]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Saccharomyces_cerevisiae_S288C Saccharomyces cerevisiae S288C]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3VU9 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3VU9 FirstGlance]. <br>
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene></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]] 1.75&#8491;</td></tr>
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<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">PSY3, YLR376C, L8039.17 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=559292 Baker's yeast]), CSM2, YIL132C ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=559292 Baker's yeast])</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene></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=3vu9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3vu9 OCA], [http://pdbe.org/3vu9 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3vu9 RCSB], [http://www.ebi.ac.uk/pdbsum/3vu9 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3vu9 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=3vu9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3vu9 OCA], [https://pdbe.org/3vu9 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3vu9 RCSB], [https://www.ebi.ac.uk/pdbsum/3vu9 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3vu9 ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
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[[http://www.uniprot.org/uniprot/PSY3_YEAST PSY3_YEAST]] Required for resistance to the DNA-damaging agents methyl methanesulfonate (MMS), cisplatin and oxaliplatin, but not to mitomycin C. Plays a role in protection against mutation accumulation. May be a component of the recombination-repair pathway.<ref>PMID:12149442</ref> <ref>PMID:12482937</ref> <ref>PMID:12972632</ref> <ref>PMID:15173006</ref> <ref>PMID:15654096</ref> <ref>PMID:19496932</ref> [[http://www.uniprot.org/uniprot/CSM2_YEAST CSM2_YEAST]] Involved in chromosome segregation during meiosis. Promotes efficient recombinational repair and functions in the protection of the genome from spontaneous and induced DNA damage like mutations and gross chromosomal rearrangements (GCRs).<ref>PMID:11470404</ref> <ref>PMID:12972632</ref> <ref>PMID:15184655</ref> <ref>PMID:15654096</ref> <ref>PMID:19496932</ref>
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[https://www.uniprot.org/uniprot/PSY3_YEAST PSY3_YEAST] Required for resistance to the DNA-damaging agents methyl methanesulfonate (MMS), cisplatin and oxaliplatin, but not to mitomycin C. Plays a role in protection against mutation accumulation. May be a component of the recombination-repair pathway.<ref>PMID:12149442</ref> <ref>PMID:12482937</ref> <ref>PMID:12972632</ref> <ref>PMID:15173006</ref> <ref>PMID:15654096</ref> <ref>PMID:19496932</ref>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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During homologous recombination, eukaryotic RecA homologue Rad51 assembles into a nucleoprotein filament on single-stranded DNA to catalyse homologous pairing and DNA-strand exchange with a homologous template. Rad51 nucleoprotein filaments are highly dynamic and regulated via the coordinated actions of various accessory proteins including Rad51 mediators. Here, we identify a new Rad51 mediator complex. The PCSS complex, comprising budding yeast Psy3, Csm2, Shu1 and Shu2 proteins, binds to recombination sites and is required for Rad51 assembly and function during meiosis. Within the hetero-tetramer, Psy3-Csm2 constitutes a core sub-complex with DNA-binding activity. In vitro, purified Psy3-Csm2 stabilizes the Rad51-single-stranded DNA complex independently of nucleotide cofactor. The mechanism of Rad51 stabilization is inferred by our high-resolution crystal structure, which reveals Psy3-Csm2 to be a structural mimic of the Rad51-dimer, a fundamental unit of the Rad51-filament. Together, these results reveal a novel molecular mechanism for this class of Rad51-mediators, which includes the human Rad51 paralogues.
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A new protein complex promoting the assembly of Rad51 filaments.,Sasanuma H, Tawaramoto MS, Lao JP, Hosaka H, Sanda E, Suzuki M, Yamashita E, Hunter N, Shinohara M, Nakagawa A, Shinohara A Nat Commun. 2013;4:1676. doi: 10.1038/ncomms2678. PMID:23575680<ref>PMID:23575680</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 3vu9" style="background-color:#fffaf0;"></div>
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== References ==
== References ==
<references/>
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
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[[Category: Baker's yeast]]
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[[Category: Large Structures]]
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[[Category: Hosaka, H]]
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[[Category: Saccharomyces cerevisiae S288C]]
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[[Category: Hunter, N]]
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[[Category: Hosaka H]]
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[[Category: Lao, J P]]
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[[Category: Hunter N]]
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[[Category: Nakagawa, A]]
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[[Category: Lao JP]]
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[[Category: Sanda, E]]
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[[Category: Nakagawa A]]
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[[Category: Sasanuma, H]]
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[[Category: Sanda E]]
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[[Category: Shinohara, A]]
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[[Category: Sasanuma H]]
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[[Category: Shinohara, M]]
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[[Category: Shinohara A]]
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[[Category: Suzuki, M]]
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[[Category: Shinohara M]]
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[[Category: Tawaramoto, M]]
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[[Category: Suzuki M]]
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[[Category: Yamashita, E]]
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[[Category: Tawaramoto M]]
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[[Category: Dna binding protein]]
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[[Category: Yamashita E]]
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[[Category: Dna repair]]
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[[Category: Meiosis]]
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[[Category: Recombination]]
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Current revision

Crystal Structure of Psy3-Csm2 complex

PDB ID 3vu9

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