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6fpu
From Proteopedia
(Difference between revisions)
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| - | '''Unreleased structure''' | ||
| - | + | ==tRNA guanine Transglycosylase (TGT) in co-crystallized complex with 6-amino-2-((((3aS,5aR,8bS)-2,2,7,7-tetramethyltetrahydro-3aH-bis([1,3]dioxolo)[4,5-b:4',5'-d]pyran-3a-yl)methyl)amino)-1,7-dihydro-8H-imidazo[4,5-g]quinazolin-8-one== | |
| + | <StructureSection load='6fpu' size='340' side='right'caption='[[6fpu]], [[Resolution|resolution]] 1.36Å' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[6fpu]] is a 1 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6FPU OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6FPU FirstGlance]. <br> | ||
| + | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=E48:6-azanyl-2-[[(1~{R},2~{S},6~{S},9~{R})-4,4,11,11-tetramethyl-3,5,7,10,12-pentaoxatricyclo[7.3.0.0^{2,6}]dodecan-6-yl]methylamino]-3,7-dihydroimidazo[4,5-g]quinazolin-8-one'>E48</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</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">[[5jsv|5jsv]], [[5jsw|5jsw]]</td></tr> | ||
| + | <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=6fpu FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6fpu OCA], [http://pdbe.org/6fpu PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6fpu RCSB], [http://www.ebi.ac.uk/pdbsum/6fpu PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6fpu ProSAT]</span></td></tr> | ||
| + | </table> | ||
| + | == Function == | ||
| + | [[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] | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | The intestinal disease shigellosis caused by Shigella bacteria affects over 120 million people annually. There is an urgent demand for new drugs as resistance against common antibiotics emerges. Bacterial tRNA-guanine transglycosylase (TGT) is a druggable target and controls the pathogenicity of Shigella flexneri. We report the synthesis of sugar-functionalized lin-benzoguanines addressing the ribose-33 pocket of TGT from Zymomonas mobilis. Ligand binding was analyzed by isothermal titration calorimetry and X-ray crystallography. Pocket occupancy was optimized by variation of size and protective groups of the sugars. The participation of a polycyclic water-cluster in the recognition of the sugar moiety was revealed. Acetonide-protected ribo- and psicofuranosyl derivatives are highly potent, benefiting from structural rigidity, good solubility, and metabolic stability. We conclude that sugar acetonides have a significant but not yet broadly recognized value in drug development. | ||
| - | + | Sugar Acetonides are a Superior Motif for Addressing the Large, Solvent-Exposed Ribose-33 Pocket of tRNA-Guanine Transglycosylase.,Movsisyan LD, Schafer E, Nguyen A, Ehrmann FR, Schwab A, Rossolini T, Zimmerli D, Wagner B, Daff H, Heine A, Klebe G, Diederich F Chemistry. 2018 Jul 11;24(39):9957-9967. doi: 10.1002/chem.201801756. Epub 2018, Jun 25. PMID:29939431<ref>PMID:29939431</ref> | |
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | [[Category: | + | </div> |
| + | <div class="pdbe-citations 6fpu" style="background-color:#fffaf0;"></div> | ||
| + | == References == | ||
| + | <references/> | ||
| + | __TOC__ | ||
| + | </StructureSection> | ||
| + | [[Category: Large Structures]] | ||
[[Category: Heine, A]] | [[Category: Heine, A]] | ||
| - | [[Category: Nguyen, A]] | ||
[[Category: Klebe, G]] | [[Category: Klebe, G]] | ||
| + | [[Category: Nguyen, A]] | ||
| + | [[Category: Co-crystallization]] | ||
| + | [[Category: Transferase]] | ||
| + | [[Category: Transferase inhibitor]] | ||
Current revision
tRNA guanine Transglycosylase (TGT) in co-crystallized complex with 6-amino-2-((((3aS,5aR,8bS)-2,2,7,7-tetramethyltetrahydro-3aH-bis([1,3]dioxolo)[4,5-b:4',5'-d]pyran-3a-yl)methyl)amino)-1,7-dihydro-8H-imidazo[4,5-g]quinazolin-8-one
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