1efz

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[[Image:1efz.png|left|200px]]
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==MUTAGENESIS AND CRYSTALLOGRAPHIC STUDIES OF ZYMOMONAS MOBILIS TRNA-GUANINE TRANSGLYCOSYLASE TO ELUCIDATE THE ROLE OF SERINE 103 FOR ENZYMATIC ACTIVITY==
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<StructureSection load='1efz' size='340' side='right' caption='[[1efz]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1efz]] 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=1EFZ OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1EFZ FirstGlance]. <br>
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</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=PRF:7-DEAZA-7-AMINOMETHYL-GUANINE'>PRF</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene><br>
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<tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1pud|1pud]]</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/tRNA-guanine_transglycosylase tRNA-guanine transglycosylase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.4.2.29 2.4.2.29] </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=1efz FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1efz OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1efz RCSB], [http://www.ebi.ac.uk/pdbsum/1efz 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/ef/1efz_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 tRNA modifying enzyme tRNA-guanine transglycosylase (TGT) is involved in the exchange of guanine in the first position of the anticodon with preQ1 as part of the biosynthesis of the hypermodified base queuine (Q). Mutation of Ser90 to an alanine in Escherichia coli TGT leads to a dramatic reduction of enzymatic activity (Reuter, K. et al. (1994) Biochemistry 33, 7041-7046). To further clarify the role of this residue in the catalytic center, we have mutated the corresponding Ser103 of the crystallizable Zymomonas mobilis TGT into alanine. The crystal structure of a TGT(S103A)/preQ1 complex combined with biochemical data presented in this paper suggest that Ser103 is essential for substrate orientation in the TGT reaction.
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{{STRUCTURE_1efz| PDB=1efz | SCENE= }}
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Mutagenesis and crystallographic studies of Zymomonas mobilis tRNA-guanine transglycosylase to elucidate the role of serine 103 for enzymatic activity.,Gradler U, Ficner R, Garcia GA, Stubbs MT, Klebe G, Reuter K FEBS Lett. 1999 Jul 2;454(1-2):142-6. PMID:10413112<ref>PMID:10413112</ref>
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===MUTAGENESIS AND CRYSTALLOGRAPHIC STUDIES OF ZYMOMONAS MOBILIS TRNA-GUANINE TRANSGLYCOSYLASE TO ELUCIDATE THE ROLE OF SERINE 103 FOR ENZYMATIC ACTIVITY===
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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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==See Also==
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==About this Structure==
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*[[TRNA-guanine transglycosylase|TRNA-guanine transglycosylase]]
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[[1efz]] 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=1EFZ OCA].
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== References ==
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<references/>
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==Reference==
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__TOC__
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<ref group="xtra">PMID:010413112</ref><references group="xtra"/>
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</StructureSection>
[[Category: Zymomonas mobilis]]
[[Category: Zymomonas mobilis]]
[[Category: TRNA-guanine transglycosylase]]
[[Category: TRNA-guanine transglycosylase]]

Revision as of 11:29, 24 September 2014

MUTAGENESIS AND CRYSTALLOGRAPHIC STUDIES OF ZYMOMONAS MOBILIS TRNA-GUANINE TRANSGLYCOSYLASE TO ELUCIDATE THE ROLE OF SERINE 103 FOR ENZYMATIC ACTIVITY

1efz, resolution 2.00Å

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OCA

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