7s0t
From Proteopedia
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| - | '''Unreleased structure''' | ||
| - | + | ==Structure of DNA polymerase zeta with mismatched DNA== | |
| + | <StructureSection load='7s0t' size='340' side='right'caption='[[7s0t]], [[Resolution|resolution]] 3.05Å' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[7s0t]] is a 7 chain structure with sequence from [https://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae] and [https://en.wikipedia.org/wiki/Synthetic_construct Synthetic construct]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7S0T OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7S0T FirstGlance]. <br> | ||
| + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Electron Microscopy, [[Resolution|Resolution]] 3.05Å</td></tr> | ||
| + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=DCP:2-DEOXYCYTIDINE-5-TRIPHOSPHATE'>DCP</scene>, <scene name='pdbligand=SF4:IRON/SULFUR+CLUSTER'>SF4</scene></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=7s0t FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7s0t OCA], [https://pdbe.org/7s0t PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7s0t RCSB], [https://www.ebi.ac.uk/pdbsum/7s0t PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7s0t ProSAT]</span></td></tr> | ||
| + | </table> | ||
| + | == Function == | ||
| + | [https://www.uniprot.org/uniprot/DPOZ_YEAST DPOZ_YEAST] Nonessential DNA polymerase. Required for DNA damage induced mutagenesis. Involved in DNA repair, mitochondrial DNA repair and translesion synthesis. Translesion synthesis in S.cerevisiae may use a specialized DNA polymerase that is not required for other DNA replicative processes. Has a role in the bypass of abasic (AP) sites. Highly inefficient in incorporating nucleotides opposite the AP site, but efficiently extends from nucleotides, particularly an A, inserted opposite the lesion.<ref>PMID:11316789</ref> <ref>PMID:16452144</ref> <ref>PMID:2676986</ref> <ref>PMID:8658138</ref> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | The B-family multi-subunit DNA polymerase zeta (Polzeta) is important for translesion DNA synthesis (TLS) during replication, due to its ability to extend synthesis past nucleotides opposite DNA lesions and mismatched base pairs. We present a cryo-EM structure of Saccharomyces cerevisiae Polzeta with an A:C mismatch at the primer terminus. The structure shows how the Polzeta active site responds to the mismatched duplex DNA distortion, including the loosening of key protein-DNA interactions and a fingers domain in an "open" conformation, while the incoming dCTP is still able to bind for the extension reaction. The structure of the mismatched DNA-Polzeta ternary complex reveals insights into mechanisms that either stall or favor continued DNA synthesis in eukaryotes. | ||
| - | + | , PMID:35217661<ref>PMID:35217661</ref> | |
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | [[Category: | + | </div> |
| + | <div class="pdbe-citations 7s0t" style="background-color:#fffaf0;"></div> | ||
| + | |||
| + | ==See Also== | ||
| + | *[[DNA polymerase 3D structures|DNA polymerase 3D structures]] | ||
| + | == References == | ||
| + | <references/> | ||
| + | __TOC__ | ||
| + | </StructureSection> | ||
| + | [[Category: Large Structures]] | ||
| + | [[Category: Saccharomyces cerevisiae]] | ||
| + | [[Category: Synthetic construct]] | ||
| + | [[Category: Aggarwal AK]] | ||
| + | [[Category: Malik R]] | ||
| + | [[Category: Ubarretxena IB]] | ||
Current revision
Structure of DNA polymerase zeta with mismatched DNA
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