2d3y: Difference between revisions
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==Crystal structure of uracil-DNA glycosylase from Thermus Thermophilus HB8== | ==Crystal structure of uracil-DNA glycosylase from Thermus Thermophilus HB8== | ||
<StructureSection load='2d3y' size='340' side='right' caption='[[2d3y]], [[Resolution|resolution]] 1.55Å' scene=''> | <StructureSection load='2d3y' size='340' side='right' caption='[[2d3y]], [[Resolution|resolution]] 1.55Å' scene=''> | ||
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=ACT:ACETATE+ION'>ACT</scene>, <scene name='pdbligand=DU:2-DEOXYURIDINE-5-MONOPHOSPHATE'>DU</scene>, <scene name='pdbligand=SF4:IRON/SULFUR+CLUSTER'>SF4</scene></td></tr> | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=ACT:ACETATE+ION'>ACT</scene>, <scene name='pdbligand=DU:2-DEOXYURIDINE-5-MONOPHOSPHATE'>DU</scene>, <scene name='pdbligand=SF4:IRON/SULFUR+CLUSTER'>SF4</scene></td></tr> | ||
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">ttUDGB ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=300852 THET8])</td></tr> | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">ttUDGB ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=300852 THET8])</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=2d3y FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2d3y OCA], [http://pdbe.org/2d3y PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2d3y RCSB], [http://www.ebi.ac.uk/pdbsum/2d3y PDBsum], [http://www.topsan.org/Proteins/RSGI/2d3y TOPSAN]</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=2d3y FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2d3y OCA], [http://pdbe.org/2d3y PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2d3y RCSB], [http://www.ebi.ac.uk/pdbsum/2d3y PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2d3y ProSAT], [http://www.topsan.org/Proteins/RSGI/2d3y TOPSAN]</span></td></tr> | ||
</table> | </table> | ||
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
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Check<jmol> | Check<jmol> | ||
<jmolCheckbox> | <jmolCheckbox> | ||
<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/d3/2d3y_consurf.spt"</scriptWhenChecked> | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/d3/2d3y_consurf.spt"</scriptWhenChecked> | ||
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | ||
<text>to colour the structure by Evolutionary Conservation</text> | <text>to colour the structure by Evolutionary Conservation</text> | ||
</jmolCheckbox> | </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/ | </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=2d3y ConSurf]. | ||
<div style="clear:both"></div> | <div style="clear:both"></div> | ||
<div style="background-color:#fffaf0;"> | <div style="background-color:#fffaf0;"> | ||
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==See Also== | ==See Also== | ||
*[[DNA glycosylase|DNA glycosylase]] | *[[DNA glycosylase|DNA glycosylase]] | ||
== References == | == References == | ||
<references/> | <references/> | ||
Revision as of 13:01, 30 January 2019
Crystal structure of uracil-DNA glycosylase from Thermus Thermophilus HB8Crystal structure of uracil-DNA glycosylase from Thermus Thermophilus HB8
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 PubMedUracil-DNA glycosylase (UDG) removes uracil generated by the deamination of cytosine or misincorporation of deoxyuridine monophosphate. Within the UDG superfamily, a fifth UDG family lacks a polar residue in the active-site motif, which mediates the hydrolysis of the glycosidic bond by activation of a water molecule in UDG families 1-4. We have determined the crystal structure of a novel family 5 UDG from Thermus thermophilus HB8 complexed with DNA containing an abasic site. The active-site structure suggests this enzyme uses both steric force and water activation for its excision reaction. A conserved asparagine residue acts as a ligand to the catalytic water molecule. The structure also implies that another water molecule acts as a barrier during substrate recognition. Based on no significant open-closed conformational change upon binding to DNA, we propose a "slide-in" mechanism for initial damage recognition. Crystal structure of family 5 uracil-DNA glycosylase bound to DNA.,Kosaka H, Hoseki J, Nakagawa N, Kuramitsu S, Masui R J Mol Biol. 2007 Nov 2;373(4):839-50. Epub 2007 Aug 21. PMID:17870091[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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