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| | <StructureSection load='4fbq' size='340' side='right'caption='[[4fbq]], [[Resolution|resolution]] 2.50Å' scene=''> | | <StructureSection load='4fbq' size='340' side='right'caption='[[4fbq]], [[Resolution|resolution]] 2.50Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[4fbq]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Fission_yeast Fission yeast]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4FBQ OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4FBQ FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[4fbq]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Schizosaccharomyces_pombe_972h- Schizosaccharomyces pombe 972h-]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4FBQ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4FBQ FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=MN:MANGANESE+(II)+ION'>MN</scene></td></tr> | + | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MN:MANGANESE+(II)+ION'>MN</scene></td></tr> |
| - | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[4fbk|4fbk]], [[4fbw|4fbw]], [[4fcx|4fcx]]</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=4fbq FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4fbq OCA], [https://pdbe.org/4fbq PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4fbq RCSB], [https://www.ebi.ac.uk/pdbsum/4fbq PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4fbq ProSAT]</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=4fbq FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4fbq OCA], [http://pdbe.org/4fbq PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4fbq RCSB], [http://www.ebi.ac.uk/pdbsum/4fbq PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4fbq ProSAT]</span></td></tr> | + | |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[http://www.uniprot.org/uniprot/NBS1_SCHPO NBS1_SCHPO]] Required for DNA damage repair and S-phase DNA damage checkpoint. Involved in telomere length maintenance and maintenance of chromatin structure.<ref>PMID:12944481</ref> <ref>PMID:12944482</ref> | + | [https://www.uniprot.org/uniprot/RAD32_SCHPO RAD32_SCHPO] Required for the repair of double strand breaks (DSB) caused by gamma and UV radiation. May work in conjunction with rhp51.[https://www.uniprot.org/uniprot/NBS1_SCHPO NBS1_SCHPO] Required for DNA damage repair and S-phase DNA damage checkpoint. Involved in telomere length maintenance and maintenance of chromatin structure.<ref>PMID:12944481</ref> <ref>PMID:12944482</ref> |
| | <div style="background-color:#fffaf0;"> | | <div style="background-color:#fffaf0;"> |
| | == Publication Abstract from PubMed == | | == Publication Abstract from PubMed == |
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| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Fission yeast]] | |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Hopfner, K P]] | + | [[Category: Schizosaccharomyces pombe 972h-]] |
| - | [[Category: Lammens, K]]
| + | [[Category: Hopfner KP]] |
| - | [[Category: Schiller, C B]]
| + | [[Category: Lammens K]] |
| - | [[Category: Dna double-strand break repair]]
| + | [[Category: Schiller CB]] |
| - | [[Category: Hydrolase]] | + | |
| - | [[Category: Nuclease]] | + | |
| - | [[Category: Protein binding]] | + | |
| Structural highlights
Function
RAD32_SCHPO Required for the repair of double strand breaks (DSB) caused by gamma and UV radiation. May work in conjunction with rhp51.NBS1_SCHPO Required for DNA damage repair and S-phase DNA damage checkpoint. Involved in telomere length maintenance and maintenance of chromatin structure.[1] [2]
Publication Abstract from PubMed
The Mre11-Rad50-Nbs1 (MRN) complex tethers, processes and signals DNA double-strand breaks, promoting genomic stability. To understand the functional architecture of MRN, we determined the crystal structures of the Schizosaccharomyces pombe Mre11 dimeric catalytic domain alone and in complex with a fragment of Nbs1. Two Nbs1 subunits stretch around the outside of the nuclease domains of Mre11, with one subunit additionally bridging and locking the Mre11 dimer via a highly conserved asymmetrical binding motif. Our results show that Mre11 forms a flexible dimer and suggest that Nbs1 not only is a checkpoint adaptor but also functionally influences Mre11-Rad50. Clinical mutations in Mre11 are located along the Nbs1-interaction sites and weaken the Mre11-Nbs1 interaction. However, they differentially affect DNA repair and telomere maintenance in Saccharomyces cerevisiae, potentially providing insight into their different human disease pathologies.
Structure of Mre11-Nbs1 complex yields insights into ataxia-telangiectasia-like disease mutations and DNA damage signaling.,Schiller CB, Lammens K, Guerini I, Coordes B, Feldmann H, Schlauderer F, Mockel C, Schele A, Strasser K, Jackson SP, Hopfner KP Nat Struct Mol Biol. 2012 Jun 17;19(7):693-700. doi: 10.1038/nsmb.2323. PMID:22705791[3]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Ueno M, Nakazaki T, Akamatsu Y, Watanabe K, Tomita K, Lindsay HD, Shinagawa H, Iwasaki H. Molecular characterization of the Schizosaccharomyces pombe nbs1+ gene involved in DNA repair and telomere maintenance. Mol Cell Biol. 2003 Sep;23(18):6553-63. PMID:12944481
- ↑ Chahwan C, Nakamura TM, Sivakumar S, Russell P, Rhind N. The fission yeast Rad32 (Mre11)-Rad50-Nbs1 complex is required for the S-phase DNA damage checkpoint. Mol Cell Biol. 2003 Sep;23(18):6564-73. PMID:12944482
- ↑ Schiller CB, Lammens K, Guerini I, Coordes B, Feldmann H, Schlauderer F, Mockel C, Schele A, Strasser K, Jackson SP, Hopfner KP. Structure of Mre11-Nbs1 complex yields insights into ataxia-telangiectasia-like disease mutations and DNA damage signaling. Nat Struct Mol Biol. 2012 Jun 17;19(7):693-700. doi: 10.1038/nsmb.2323. PMID:22705791 doi:10.1038/nsmb.2323
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