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1k4g

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[[Image:1k4g.png|left|200px]]
 
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{{STRUCTURE_1k4g| PDB=1k4g | SCENE= }}
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==CRYSTAL STRUCTURE OF TRNA-GUANINE TRANSGLYCOSYLASE (TGT) COMPLEXED WITH 2,6-DIAMINO-8-(1H-IMIDAZOL-2-YLSULFANYLMETHYL)-3H-QUINAZOLINE-4-ONE==
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<StructureSection load='1k4g' size='340' side='right'caption='[[1k4g]], [[Resolution|resolution]] 1.70&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1k4g]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Zymomonas_mobilis Zymomonas mobilis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1K4G OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1K4G 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]] 1.7&#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=AIQ:2,6-DIAMINO-8-(1H-IMIDAZOL-2-YLSULFANYLMETHYL)-3H-QUINAZOLINE-4-ONE'>AIQ</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=1k4g FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1k4g OCA], [https://pdbe.org/1k4g PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1k4g RCSB], [https://www.ebi.ac.uk/pdbsum/1k4g PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1k4g ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/TGT_ZYMMO TGT_ZYMMO] Exchanges the guanine residue with 7-aminomethyl-7-deazaguanine in tRNAs with GU(N) anticodons (tRNA-Asp, -Asn, -His and -Tyr). After this exchange, a cyclopentendiol moiety is attached to the 7-aminomethyl group of 7-deazaguanine, resulting in the hypermodified nucleoside queuosine (Q) (7-(((4,5-cis-dihydroxy-2-cyclopenten-1-yl)amino)methyl)-7-deazaguanosine).[HAMAP-Rule:MF_00168]
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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/k4/1k4g_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=1k4g ConSurf].
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<div style="clear:both"></div>
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===CRYSTAL STRUCTURE OF TRNA-GUANINE TRANSGLYCOSYLASE (TGT) COMPLEXED WITH 2,6-DIAMINO-8-(1H-IMIDAZOL-2-YLSULFANYLMETHYL)-3H-QUINAZOLINE-4-ONE===
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==See Also==
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*[[TRNA-guanine transglycosylase 3D structures|TRNA-guanine transglycosylase 3D structures]]
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__TOC__
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==About this Structure==
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</StructureSection>
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[[1k4g]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Zymomonas_mobilis Zymomonas mobilis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1K4G OCA].
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[[Category: Large Structures]]
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==Reference==
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<ref group="xtra">PMID:011921407</ref><references group="xtra"/>
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[[Category: Zymomonas mobilis]]
[[Category: Zymomonas mobilis]]
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[[Category: TRNA-guanine transglycosylase]]
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[[Category: Brenk R]]
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[[Category: Brenk, R.]]
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[[Category: Castellano RK]]
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[[Category: Castellano, R K.]]
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[[Category: Diederich F]]
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[[Category: Diederich, F.]]
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[[Category: Furler M]]
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[[Category: Furler, M.]]
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[[Category: Klebe G]]
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[[Category: Klebe, G.]]
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[[Category: Meyer EA]]
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[[Category: Meyer, E A.]]
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[[Category: Stubbs MT]]
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[[Category: Stubbs, M T.]]
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[[Category: Glycosyltransferase]]
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[[Category: Transferase]]
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[[Category: Trna-modifying enzyme]]
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Current revision

CRYSTAL STRUCTURE OF TRNA-GUANINE TRANSGLYCOSYLASE (TGT) COMPLEXED WITH 2,6-DIAMINO-8-(1H-IMIDAZOL-2-YLSULFANYLMETHYL)-3H-QUINAZOLINE-4-ONE

PDB ID 1k4g

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