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2ash

From Proteopedia

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[[Image:2ash.gif|left|200px]]<br /><applet load="2ash" size="350" color="white" frame="true" align="right" spinBox="true"
 
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caption="2ash, resolution 1.900&Aring;" />
 
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'''Crystal structure of Queuine tRNA-ribosyltransferase (EC 2.4.2.29) (tRNA-guanine (tm1561) from THERMOTOGA MARITIMA at 1.90 A resolution'''<br />
 
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==About this Structure==
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==Crystal structure of Queuine tRNA-ribosyltransferase (EC 2.4.2.29) (tRNA-guanine (tm1561) from THERMOTOGA MARITIMA at 1.90 A resolution==
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2ASH is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Thermotoga_maritima Thermotoga maritima] with <scene name='pdbligand=ZN:'>ZN</scene>, <scene name='pdbligand=CL:'>CL</scene> and <scene name='pdbligand=EDO:'>EDO</scene> as [http://en.wikipedia.org/wiki/ligands ligands]. Active as [http://en.wikipedia.org/wiki/Queuine_tRNA-ribosyltransferase Queuine tRNA-ribosyltransferase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.4.2.29 2.4.2.29] Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2ASH OCA].
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<StructureSection load='2ash' size='340' side='right'caption='[[2ash]], [[Resolution|resolution]] 1.90&Aring;' scene=''>
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[[Category: Queuine tRNA-ribosyltransferase]]
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== Structural highlights ==
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[[Category: Single protein]]
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<table><tr><td colspan='2'>[[2ash]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Thermotoga_maritima Thermotoga maritima]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2ASH OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2ASH FirstGlance]. <br>
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[[Category: Thermotoga maritima]]
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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]] 1.9&#8491;</td></tr>
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[[Category: JCSG, Joint Center for Structural Genomics.]]
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
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[[Category: CL]]
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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=2ash FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2ash OCA], [https://pdbe.org/2ash PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2ash RCSB], [https://www.ebi.ac.uk/pdbsum/2ash PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2ash ProSAT], [https://www.topsan.org/Proteins/JCSG/2ash TOPSAN]</span></td></tr>
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[[Category: EDO]]
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</table>
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[[Category: ZN]]
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== Function ==
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[[Category: jcsg]]
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[https://www.uniprot.org/uniprot/TGT_THEMA TGT_THEMA] 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) (By similarity).
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[[Category: joint center for structural genomics]]
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== Evolutionary Conservation ==
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[[Category: protein structure initiative]]
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[[Image:Consurf_key_small.gif|200px|right]]
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[[Category: psi]]
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Check<jmol>
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[[Category: queuine trna-ribosyltransferase]]
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<jmolCheckbox>
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[[Category: structural genomics]]
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/as/2ash_consurf.spt"</scriptWhenChecked>
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[[Category: tm1561]]
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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[[Category: trna-guanine]]
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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=2ash ConSurf].
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<div style="clear:both"></div>
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 16:30:35 2008''
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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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</StructureSection>
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[[Category: Large Structures]]
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[[Category: Thermotoga maritima]]

Current revision

Crystal structure of Queuine tRNA-ribosyltransferase (EC 2.4.2.29) (tRNA-guanine (tm1561) from THERMOTOGA MARITIMA at 1.90 A resolution

PDB ID 2ash

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