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4q8u

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'''Unreleased structure'''
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==tRNA-Guanine Transglycosylase (TGT) in Complex with Methyl 4-[2-({6-amino-8-oxo-1H,7H,8H-imidazo[4,5-g]quinazolin-2-yl}amino)ethyl]benzoate==
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<StructureSection load='4q8u' size='340' side='right' caption='[[4q8u]], [[Resolution|resolution]] 1.31&Aring;' scene=''>
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The entry 4q8u is ON HOLD until Paper Publication
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== Structural highlights ==
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<table><tr><td colspan='2'>[[4q8u]] is a 1 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4Q8U OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4Q8U FirstGlance]. <br>
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Authors: Neeb, M., Heine, A., Klebe, G.
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=2YW:METHYL+4-{2-[(6-AMINO-8-OXO-7,8-DIHYDRO-1H-IMIDAZO[4,5-G]QUINAZOLIN-2-YL)AMINO]ETHYL}BENZOATE'>2YW</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
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<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1p0d|1p0d]], [[4q8t|4q8t]], [[4q8v|4q8v]], [[4q8w|4q8w]]</td></tr>
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Description: tRNA-Guanine Transglycosylase (TGT) in Complex with Methyl 4-[2-({6-amino-8-oxo-1H,7H,8H-imidazo[4,5-g]quinazolin-2-yl}amino)ethyl]benzoate
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<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/tRNA-guanine(34)_transglycosylase tRNA-guanine(34) 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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[[Category: Unreleased Structures]]
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4q8u FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4q8u OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4q8u RCSB], [http://www.ebi.ac.uk/pdbsum/4q8u PDBsum]</span></td></tr>
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</table>
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== Function ==
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[[http://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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__TOC__
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</StructureSection>
[[Category: Heine, A]]
[[Category: Heine, A]]
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[[Category: Neeb, M]]
 
[[Category: Klebe, G]]
[[Category: Klebe, G]]
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[[Category: Neeb, M]]
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[[Category: Guanine exchange enzyme]]
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[[Category: Preq1]]
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[[Category: Transferase]]
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[[Category: Transferase-transferase inhibitor complex]]
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[[Category: Trna]]

Revision as of 12:16, 20 May 2015

tRNA-Guanine Transglycosylase (TGT) in Complex with Methyl 4-[2-({6-amino-8-oxo-1H,7H,8H-imidazo[4,5-g]quinazolin-2-yl}amino)ethyl]benzoate

4q8u, resolution 1.31Å

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