1q66: Difference between revisions
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<StructureSection load='1q66' size='340' side='right' caption='[[1q66]], [[Resolution|resolution]] 1.75Å' scene=''> | <StructureSection load='1q66' size='340' side='right' caption='[[1q66]], [[Resolution|resolution]] 1.75Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[1q66]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/ | <table><tr><td colspan='2'>[[1q66]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/"achromobacter_anaerobium"_(sic)_shimwell_1937 "achromobacter anaerobium" (sic) shimwell 1937]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1Q66 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1Q66 FirstGlance]. <br> | ||
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=KMB:2-AMINO-6-AMINOMETHYL-8-PHENYLSULFANYLMETHYL-3H-QUINAZOLIN-4-ONE'>KMB</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr> | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=KMB:2-AMINO-6-AMINOMETHYL-8-PHENYLSULFANYLMETHYL-3H-QUINAZOLIN-4-ONE'>KMB</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr> | ||
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1pud|1pud]], [[1q4w|1q4w]], [[1q63|1q63]], [[1q65|1q65]]</td></tr> | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1pud|1pud]], [[1q4w|1q4w]], [[1q63|1q63]], [[1q65|1q65]]</td></tr> | ||
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">TGT ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=542 | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">TGT ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=542 "Achromobacter anaerobium" (sic) Shimwell 1937])</td></tr> | ||
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/tRNA- | <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> | ||
<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=1q66 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1q66 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1q66 RCSB], [http://www.ebi.ac.uk/pdbsum/1q66 PDBsum]</span></td></tr> | <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=1q66 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1q66 OCA], [http://pdbe.org/1q66 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1q66 RCSB], [http://www.ebi.ac.uk/pdbsum/1q66 PDBsum]</span></td></tr> | ||
</table> | </table> | ||
== Function == | == Function == | ||
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
</div> | </div> | ||
<div class="pdbe-citations 1q66" style="background-color:#fffaf0;"></div> | |||
==See Also== | ==See Also== | ||
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__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
[[Category: Brenk, R]] | [[Category: Brenk, R]] | ||
[[Category: Garcia, G A]] | [[Category: Garcia, G A]] | ||
Revision as of 19:55, 10 September 2015
CRYSTAL STRUCTURE OF TGT IN COMPLEX WITH 2-AMINO-6-AMINOMETHYL-8-phenylsulfanylmethyl-3H-QUINAZOLIN-4-ONE crystallized at pH 5.5CRYSTAL STRUCTURE OF TGT IN COMPLEX WITH 2-AMINO-6-AMINOMETHYL-8-phenylsulfanylmethyl-3H-QUINAZOLIN-4-ONE crystallized at pH 5.5
Structural highlights
Function[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] Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMedThe enzyme tRNA-guanine transglycosylase (TGT) is involved in the pathogenicity of Shigellae. As the crystal structure of this protein is known, it is a putative target for the structure-based design of inhibitors. Here we report a crystallographic study of several new ligands exhibiting a 2,6-diamino-3H-quinazolin-4-one scaffold, which has been shown recently to be a promising template for TGT-inhibitors. Crystal structure analysis of these complexes has revealed an unexpected movement of the side-chain of Asp102. A detailed analysis of the water network disrupted by this rotation has lead to the derivation of a new composite pharmacophore. A virtual screening has been performed based on this pharmacophore hypothesis and several new inhibitors of micromolar binding affinity with new skeletons have been discovered. Crystallographic study of inhibitors of tRNA-guanine transglycosylase suggests a new structure-based pharmacophore for virtual screening.,Brenk R, Meyer EA, Reuter K, Stubbs MT, Garcia GA, Diederich F, Klebe G J Mol Biol. 2004 Apr 16;338(1):55-75. PMID:15050823[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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