1r2z

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[[Image:1r2z.png|left|200px]]
 
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{{STRUCTURE_1r2z| PDB=1r2z | SCENE= }}
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==MutM (Fpg) bound to 5,6-dihydrouracil (DHU) containing DNA==
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<StructureSection load='1r2z' size='340' side='right'caption='[[1r2z]], [[Resolution|resolution]] 1.63&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1r2z]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Geobacillus_stearothermophilus Geobacillus stearothermophilus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1R2Z OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1R2Z FirstGlance]. <br>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.63&#8491;</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=UMP:2-DEOXYURIDINE+5-MONOPHOSPHATE'>UMP</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1r2z FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1r2z OCA], [https://pdbe.org/1r2z PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1r2z RCSB], [https://www.ebi.ac.uk/pdbsum/1r2z PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1r2z ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/P84131_GEOSE P84131_GEOSE] Involved in base excision repair of DNA damaged by oxidation or by mutagenic agents. Acts as DNA glycosylase that recognizes and removes damaged bases. Has a preference for oxidized purines, such as 7,8-dihydro-8-oxoguanine (8-oxoG). Has AP (apurinic/apyrimidinic) lyase activity and introduces nicks in the DNA strand. Cleaves the DNA backbone by beta-delta elimination to generate a single-strand break at the site of the removed base with both 3'- and 5'-phosphates (By similarity).[HAMAP-Rule:MF_00103][SAAS:SAAS020629_004_120556]
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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/r2/1r2z_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/main_output.php?pdb_ID=1r2z 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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MutM is a bacterial DNA glycosylase that removes the mutagenic lesion 8-oxoguanine (oxoG) from duplex DNA. The means of oxoG recognition by MutM (also known as Fpg) is of fundamental interest, in light of the vast excess of normal guanine bases present in genomic DNA. The crystal structure of a recognition-competent but catalytically inactive version of MutM in complex with oxoG-containing DNA reveals the structural basis for recognition. MutM binds the oxoG nucleoside in the syn glycosidic configuration and distinguishes oxoG from guanine by reading out the protonation state of the N7 atom. The segment of MutM principally responsible for oxoG recognition is a flexible loop, suggesting that conformational mobility influences lesion recognition and catalysis. Furthermore, the structure of MutM in complex with DNA containing an alternative substrate, dihydrouracil, demonstrates how MutM is able to recognize lesions other than oxoG.
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===MutM (Fpg) bound to 5,6-dihydrouracil (DHU) containing DNA===
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DNA lesion recognition by the bacterial repair enzyme MutM.,Fromme JC, Verdine GL J Biol Chem. 2003 Dec 19;278(51):51543-8. Epub 2003 Oct 1. PMID:14525999<ref>PMID:14525999</ref>
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{{ABSTRACT_PUBMED_14525999}}
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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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==About this Structure==
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<div class="pdbe-citations 1r2z" style="background-color:#fffaf0;"></div>
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[[1r2z]] 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=1R2Z OCA].
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==See Also==
==See Also==
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*[[DNA glycosylate|DNA glycosylate]]
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*[[DNA glycosylase 3D structures|DNA glycosylase 3D structures]]
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== References ==
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==Reference==
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<references/>
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<ref group="xtra">PMID:014525999</ref><references group="xtra"/>
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__TOC__
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</StructureSection>
[[Category: Geobacillus stearothermophilus]]
[[Category: Geobacillus stearothermophilus]]
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[[Category: Fromme, J C.]]
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[[Category: Large Structures]]
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[[Category: Verdine, G L.]]
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[[Category: Fromme JC]]
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[[Category: Dna glycosylase]]
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[[Category: Verdine GL]]
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[[Category: Dna repair]]
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[[Category: Hydrolase-dna complex]]
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Current revision

MutM (Fpg) bound to 5,6-dihydrouracil (DHU) containing DNA

PDB ID 1r2z

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