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| | ==Crystal structure of the C-terminal domain of Sld7== | | ==Crystal structure of the C-terminal domain of Sld7== |
| - | <StructureSection load='3x38' size='340' side='right' caption='[[3x38]], [[Resolution|resolution]] 1.80Å' scene=''> | + | <StructureSection load='3x38' size='340' side='right'caption='[[3x38]], [[Resolution|resolution]] 1.80Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[3x38]] is a 4 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=3X38 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3X38 FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[3x38]] is a 4 chain structure with sequence from [https://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=3X38 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3X38 FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr> | + | </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>, <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">[[3x37|3x37]]</td></tr> | + | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[3x37|3x37]]</div></td></tr> |
| - | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">SLD7, YOR060C, YOR29-11 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=559292 Baker's yeast])</td></tr> | + | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">SLD7, YOR060C, YOR29-11 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=559292 Baker's yeast])</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=3x38 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3x38 OCA], [http://pdbe.org/3x38 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3x38 RCSB], [http://www.ebi.ac.uk/pdbsum/3x38 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3x38 ProSAT]</span></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=3x38 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3x38 OCA], [https://pdbe.org/3x38 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3x38 RCSB], [https://www.ebi.ac.uk/pdbsum/3x38 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3x38 ProSAT]</span></td></tr> |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[http://www.uniprot.org/uniprot/SLD7_YEAST SLD7_YEAST]] Required for the proper function of SLD3 at the initiation of DNA replication. Binds to SLD3 and reduces its affinity for CDC45, a component of the replication fork. Required for mitochondrial morphology.<ref>PMID:16135527</ref> <ref>PMID:21487389</ref> | + | [[https://www.uniprot.org/uniprot/SLD7_YEAST SLD7_YEAST]] Required for the proper function of SLD3 at the initiation of DNA replication. Binds to SLD3 and reduces its affinity for CDC45, a component of the replication fork. Required for mitochondrial morphology.<ref>PMID:16135527</ref> <ref>PMID:21487389</ref> |
| | <div style="background-color:#fffaf0;"> | | <div style="background-color:#fffaf0;"> |
| | == Publication Abstract from PubMed == | | == Publication Abstract from PubMed == |
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| | </StructureSection> | | </StructureSection> |
| | [[Category: Baker's yeast]] | | [[Category: Baker's yeast]] |
| | + | [[Category: Large Structures]] |
| | [[Category: Araki, H]] | | [[Category: Araki, H]] |
| | [[Category: Itou, H]] | | [[Category: Itou, H]] |
| Structural highlights
Function
[SLD7_YEAST] Required for the proper function of SLD3 at the initiation of DNA replication. Binds to SLD3 and reduces its affinity for CDC45, a component of the replication fork. Required for mitochondrial morphology.[1] [2]
Publication Abstract from PubMed
The initiation of eukaryotic chromosomal DNA replication requires the formation of an active replicative helicase at the replication origins of chromosomes. Yeast Sld3 and its metazoan counterpart treslin are the hub proteins mediating protein associations critical for formation of the helicase. The Sld7 protein interacts with Sld3, and the complex formed is thought to regulate the function of Sld3. Although Sld7 is a non-essential DNA replication protein that is found in only a limited range of yeasts, its depletion slowed the growth of cells and caused a delay in the S phase. Recently, the Mdm2-binding protein was found to bind to treslin in humans, and its depletion causes defects in cells similar to the depletion of Sld7 in yeast, suggesting their functional relatedness and importance during the initiation step of DNA replication. Here, the crystal structure of Sld7 in complex with Sld3 is presented. Sld7 comprises two structural domains. The N-terminal domain of Sld7 binds to Sld3, and the C-terminal domains connect two Sld7 molecules in an antiparallel manner. The quaternary structure of the Sld3-Sld7 complex shown from the crystal structures appears to be suitable to activate two helicase molecules loaded onto replication origins in a head-to-head manner.
The quaternary structure of the eukaryotic DNA replication proteins Sld7 and Sld3.,Itou H, Shirakihara Y, Araki H Acta Crystallogr D Biol Crystallogr. 2015 Aug 1;71(Pt 8):1649-56. doi:, 10.1107/S1399004715010457. Epub 2015 Jul 28. PMID:26249346[3]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Altmann K, Westermann B. Role of essential genes in mitochondrial morphogenesis in Saccharomyces cerevisiae. Mol Biol Cell. 2005 Nov;16(11):5410-7. Epub 2005 Aug 31. PMID:16135527 doi:http://dx.doi.org/10.1091/mbc.E05-07-0678
- ↑ Tanaka T, Umemori T, Endo S, Muramatsu S, Kanemaki M, Kamimura Y, Obuse C, Araki H. Sld7, an Sld3-associated protein required for efficient chromosomal DNA replication in budding yeast. EMBO J. 2011 May 18;30(10):2019-30. doi: 10.1038/emboj.2011.115. Epub 2011 Apr, 12. PMID:21487389 doi:http://dx.doi.org/10.1038/emboj.2011.115
- ↑ Itou H, Shirakihara Y, Araki H. The quaternary structure of the eukaryotic DNA replication proteins Sld7 and Sld3. Acta Crystallogr D Biol Crystallogr. 2015 Aug 1;71(Pt 8):1649-56. doi:, 10.1107/S1399004715010457. Epub 2015 Jul 28. PMID:26249346 doi:http://dx.doi.org/10.1107/S1399004715010457
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