2q2t: Difference between revisions
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== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[2q2t]] is a 4 chain structure with sequence from [http://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 [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2Q2T FirstGlance]. <br> | <table><tr><td colspan='2'>[[2q2t]] is a 4 chain structure with sequence from [http://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 [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2Q2T FirstGlance]. <br> | ||
</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=AMP:ADENOSINE+MONOPHOSPHATE'>AMP</scene>< | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=AMP:ADENOSINE+MONOPHOSPHATE'>AMP</scene></td></tr> | ||
<tr><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=OMC:O2-METHYLYCYTIDINE-5-MONOPHOSPHATE'>OMC</scene></td></tr> | <tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=OMC:O2-METHYLYCYTIDINE-5-MONOPHOSPHATE'>OMC</scene></td></tr> | ||
<tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1fvi|1fvi]], [[2q2u|2q2u]]</td></tr> | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1fvi|1fvi]], [[2q2u|2q2u]]</td></tr> | ||
<tr><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">A544R ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=10506 Paramecium bursaria Chlorella virus 1])</td></tr> | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">A544R ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=10506 Paramecium bursaria Chlorella virus 1])</td></tr> | ||
<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2q2t FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2q2t OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2q2t RCSB], [http://www.ebi.ac.uk/pdbsum/2q2t PDBsum]</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=2q2t FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2q2t OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2q2t RCSB], [http://www.ebi.ac.uk/pdbsum/2q2t PDBsum]</span></td></tr> | ||
<table> | </table> | ||
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
[[Image:Consurf_key_small.gif|200px|right]] | [[Image:Consurf_key_small.gif|200px|right]] | ||
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</StructureSection> | </StructureSection> | ||
[[Category: Paramecium bursaria chlorella virus 1]] | [[Category: Paramecium bursaria chlorella virus 1]] | ||
[[Category: Lima, C D | [[Category: Lima, C D]] | ||
[[Category: Nair, P A | [[Category: Nair, P A]] | ||
[[Category: Nandakumar, J | [[Category: Nandakumar, J]] | ||
[[Category: Shuman, S | [[Category: Shuman, S]] | ||
[[Category: Smith, P | [[Category: Smith, P]] | ||
[[Category: Ligase]] | [[Category: Ligase]] | ||
[[Category: Ligase-dna complex]] | [[Category: Ligase-dna complex]] | ||
[[Category: Lysine adenylate]] | [[Category: Lysine adenylate]] | ||
[[Category: Protein-dna complex]] | [[Category: Protein-dna complex]] | ||
Revision as of 19:58, 19 January 2015
Structure of Chlorella virus DNA ligase-adenylate bound to a 5' phosphorylated nickStructure of Chlorella virus DNA ligase-adenylate bound to a 5' phosphorylated nick
Structural highlights
Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMedChlorella 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[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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