2jhj

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[[Image:2jhj.png|left|200px]]
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==3-METHYLADENINE DNA-GLYCOSYLASE FROM ARCHAEOGLOBUS FULGIDUS==
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<StructureSection load='2jhj' size='340' side='right' caption='[[2jhj]], [[Resolution|resolution]] 1.90&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[2jhj]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Archaeoglobus_fulgidus Archaeoglobus fulgidus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2JHJ OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2JHJ FirstGlance]. <br>
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</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</scene><br>
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<tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2jhn|2jhn]]</td></tr>
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<tr><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/DNA-3-methyladenine_glycosylase_II DNA-3-methyladenine glycosylase II], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.2.2.21 3.2.2.21] </span></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=2jhj FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2jhj OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2jhj RCSB], [http://www.ebi.ac.uk/pdbsum/2jhj 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/jh/2jhj_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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N(1)-methyladenine (m(1)A) and N(3)-methylcytosine (m(3)C) are major toxic and mutagenic lesions induced by alkylation in single-stranded DNA. In bacteria and mammals, m(1)A and m(3)C were recently shown to be repaired by AlkB-mediated oxidative demethylation, a direct DNA damage reversal mechanism. No AlkB gene homologues have been identified in Archaea. We report that m(1)A and m(3)C are repaired by the AfAlkA base excision repair glycosylase of Archaeoglobus fulgidus, suggesting a different repair mechanism for these lesions in the third domain of life. In addition, AfAlkA was found to effect a robust excision of 1,N(6)-ethenoadenine. We present a high-resolution crystal structure of AfAlkA, which, together with the characterization of several site-directed mutants, forms a molecular rationalization for the newly discovered base excision activity.
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{{STRUCTURE_2jhj| PDB=2jhj | SCENE= }}
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Structural basis for enzymatic excision of N1-methyladenine and N3-methylcytosine from DNA.,Leiros I, Nabong MP, Grosvik K, Ringvoll J, Haugland GT, Uldal L, Reite K, Olsbu IK, Knaevelsrud I, Moe E, Andersen OA, Birkeland NK, Ruoff P, Klungland A, Bjelland S EMBO J. 2007 Apr 18;26(8):2206-17. Epub 2007 Mar 29. PMID:17396151<ref>PMID:17396151</ref>
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===3-METHYLADENINE DNA-GLYCOSYLASE FROM ARCHAEOGLOBUS FULGIDUS===
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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_17396151}}
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==About this Structure==
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[[2jhj]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Archaeoglobus_fulgidus Archaeoglobus fulgidus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2JHJ OCA].
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==See Also==
==See Also==
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*[[DNA glycosylate|DNA glycosylate]]
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*[[DNA glycosylase|DNA glycosylase]]
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== References ==
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==Reference==
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<references/>
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<ref group="xtra">PMID:017396151</ref><references group="xtra"/>
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__TOC__
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</StructureSection>
[[Category: Archaeoglobus fulgidus]]
[[Category: Archaeoglobus fulgidus]]
[[Category: DNA-3-methyladenine glycosylase II]]
[[Category: DNA-3-methyladenine glycosylase II]]

Revision as of 10:56, 3 October 2014

3-METHYLADENINE DNA-GLYCOSYLASE FROM ARCHAEOGLOBUS FULGIDUS

2jhj, resolution 1.90Å

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