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2q2t
From Proteopedia
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| - | [[Image:2q2t.png|left|200px]] | ||
| - | + | ==Structure of Chlorella virus DNA ligase-adenylate bound to a 5' phosphorylated nick== | |
| + | <StructureSection load='2q2t' size='340' side='right'caption='[[2q2t]], [[Resolution|resolution]] 2.30Å' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[2q2t]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Paramecium_bursaria_Chlorella_virus_1 Paramecium bursaria Chlorella virus 1]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2Q2T OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2Q2T FirstGlance]. <br> | ||
| + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.3Å</td></tr> | ||
| + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=AMP:ADENOSINE+MONOPHOSPHATE'>AMP</scene>, <scene name='pdbligand=OMC:O2-METHYLYCYTIDINE-5-MONOPHOSPHATE'>OMC</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=2q2t FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2q2t OCA], [https://pdbe.org/2q2t PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2q2t RCSB], [https://www.ebi.ac.uk/pdbsum/2q2t PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2q2t ProSAT]</span></td></tr> | ||
| + | </table> | ||
| + | == Function == | ||
| + | [https://www.uniprot.org/uniprot/O41026_PBCV1 O41026_PBCV1] | ||
| + | == Evolutionary Conservation == | ||
| + | [[Image:Consurf_key_small.gif|200px|right]] | ||
| + | Check<jmol> | ||
| + | <jmolCheckbox> | ||
| + | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/q2/2q2t_consurf.spt"</scriptWhenChecked> | ||
| + | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | ||
| + | <text>to colour the structure by Evolutionary Conservation</text> | ||
| + | </jmolCheckbox> | ||
| + | </jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=2q2t ConSurf]. | ||
| + | <div style="clear:both"></div> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | Chlorella virus DNA ligase, the smallest eukaryotic ligase known, has pluripotent biological activity and an intrinsic nick-sensing function, despite having none of the accessory domains found in cellular ligases. A 2.3-A crystal structure of the Chlorella virus ligase-AMP intermediate bound to duplex DNA containing a 3'-OH-5'-PO4 nick reveals a new mode of DNA envelopment, in which a short surface loop emanating from the OB domain forms a beta-hairpin 'latch' that inserts into the DNA major groove flanking the nick. A network of interactions with the 3'-OH and 5'-PO4 termini in the active site illuminates the DNA adenylylation mechanism and the crucial roles of AMP in nick sensing and catalysis. Addition of a divalent cation triggered nick sealing in crystallo, establishing that the nick complex is a bona fide intermediate in the DNA repair pathway. | ||
| - | + | Structural basis for nick recognition by a minimal pluripotent DNA ligase.,Nair PA, Nandakumar J, Smith P, Odell M, Lima CD, Shuman S Nat Struct Mol Biol. 2007 Aug;14(8):770-8. Epub 2007 Jul 8. PMID:17618295<ref>PMID:17618295</ref> | |
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | + | </div> | |
| - | + | <div class="pdbe-citations 2q2t" style="background-color:#fffaf0;"></div> | |
| - | + | ||
==See Also== | ==See Also== | ||
| - | *[[DNA ligase|DNA ligase]] | + | *[[DNA ligase 3D structures|DNA ligase 3D structures]] |
| - | + | == References == | |
| - | == | + | <references/> |
| - | < | + | __TOC__ |
| - | [[Category: Paramecium bursaria | + | </StructureSection> |
| - | [[Category: Lima | + | [[Category: Large Structures]] |
| - | [[Category: Nair | + | [[Category: Paramecium bursaria Chlorella virus 1]] |
| - | [[Category: Nandakumar | + | [[Category: Lima CD]] |
| - | [[Category: Shuman | + | [[Category: Nair PA]] |
| - | [[Category: Smith | + | [[Category: Nandakumar J]] |
| - | + | [[Category: Shuman S]] | |
| - | + | [[Category: Smith P]] | |
| - | + | ||
| - | + | ||
Current revision
Structure of Chlorella virus DNA ligase-adenylate bound to a 5' phosphorylated nick
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