1rrq

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[[Image:1rrq.png|left|200px]]
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==MutY adenine glycosylase in complex with DNA containing an A:oxoG pair==
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<StructureSection load='1rrq' size='340' side='right' caption='[[1rrq]], [[Resolution|resolution]] 2.22&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1rrq]] is a 3 chain structure with sequence from [http://en.wikipedia.org/wiki/Geobacillus_stearothermophilus Geobacillus stearothermophilus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1RRQ OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1RRQ FirstGlance]. <br>
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</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=SF4:IRON/SULFUR+CLUSTER'>SF4</scene><br>
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<tr><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=8OG:8-OXO-2-DEOXY-GUANOSINE-5-MONOPHOSPHATE'>8OG</scene></td></tr>
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<tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1rrs|1rrs]], [[1rrt|1rrt]]</td></tr>
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<tr><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">muty ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1422 Geobacillus stearothermophilus])</td></tr>
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<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=1rrq FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1rrq OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1rrq RCSB], [http://www.ebi.ac.uk/pdbsum/1rrq PDBsum]</span></td></tr>
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<table>
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/rr/1rrq_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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</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/chain_selection.php?pdb_ID=2ata ConSurf].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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The genomes of aerobic organisms suffer chronic oxidation of guanine to the genotoxic product 8-oxoguanine (oxoG). Replicative DNA polymerases misread oxoG residues and insert adenine instead of cytosine opposite the oxidized base. Both bases in the resulting A*oxoG mispair are mutagenic lesions, and both must undergo base-specific replacement to restore the original C*G pair. Doing so represents a formidable challenge to the DNA repair machinery, because adenine makes up roughly 25% of the bases in most genomes. The evolutionarily conserved enzyme adenine DNA glycosylase (called MutY in bacteria and hMYH in humans) initiates repair of A*oxoG to C*G by removing the inappropriately paired adenine base from the DNA backbone. A central issue concerning MutY function is the mechanism by which A*oxoG mispairs are targeted among the vast excess of A*T pairs. Here we report the use of disulphide crosslinking to obtain high-resolution crystal structures of MutY-DNA lesion-recognition complexes. These structures reveal the basis for recognizing both lesions in the A*oxoG pair and for catalysing removal of the adenine base.
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{{STRUCTURE_1rrq| PDB=1rrq | SCENE= }}
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Structural basis for removal of adenine mispaired with 8-oxoguanine by MutY adenine DNA glycosylase.,Fromme JC, Banerjee A, Huang SJ, Verdine GL Nature. 2004 Feb 12;427(6975):652-6. PMID:14961129<ref>PMID:14961129</ref>
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===MutY adenine glycosylase in complex with DNA containing an A:oxoG pair===
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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{{ABSTRACT_PUBMED_14961129}}
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==About this Structure==
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[[1rrq]] is a 3 chain structure with sequence from [http://en.wikipedia.org/wiki/Geobacillus_stearothermophilus Geobacillus stearothermophilus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1RRQ OCA].
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==See Also==
==See Also==
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*[[DNA glycosylate|DNA glycosylate]]
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*[[Adenine glycosylase|Adenine glycosylase]]
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*[[DNA glycosylase|DNA glycosylase]]
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==Reference==
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== References ==
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<ref group="xtra">PMID:014961129</ref><references group="xtra"/>
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<references/>
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__TOC__
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</StructureSection>
[[Category: Geobacillus stearothermophilus]]
[[Category: Geobacillus stearothermophilus]]
[[Category: Banerjee, A.]]
[[Category: Banerjee, A.]]

Revision as of 09:10, 3 October 2014

MutY adenine glycosylase in complex with DNA containing an A:oxoG pair

1rrq, resolution 2.22Å

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