1f3e

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[[Image:1f3e.jpg|left|200px]]
[[Image:1f3e.jpg|left|200px]]
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{{Structure
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<!--
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|PDB= 1f3e |SIZE=350|CAPTION= <scene name='initialview01'>1f3e</scene>, resolution 1.85&Aring;
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The line below this paragraph, containing "STRUCTURE_1f3e", creates the "Structure Box" on the page.
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|SITE=
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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|LIGAND= <scene name='pdbligand=DPZ:3,5-DIAMINOPHTHALHYDRAZIDE'>DPZ</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene>
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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|ACTIVITY= <span class='plainlinks'>[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] </span>
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or leave the SCENE parameter empty for the default display.
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|GENE=
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-->
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|DOMAIN=
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{{STRUCTURE_1f3e| PDB=1f3e | SCENE= }}
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|RELATEDENTRY=[[1pud|1PUD]], [[1efz|1EFZ]], [[1enu|1ENU]]
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|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1f3e FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1f3e OCA], [http://www.ebi.ac.uk/pdbsum/1f3e PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1f3e RCSB]</span>
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}}
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'''A NEW TARGET FOR SHIGELLOSIS: RATIONAL DESIGN AND CRYSTALLOGRAPHIC STUDIES OF INHIBITORS OF TRNA-GUANINE TRANSGLYCOSYLASE'''
'''A NEW TARGET FOR SHIGELLOSIS: RATIONAL DESIGN AND CRYSTALLOGRAPHIC STUDIES OF INHIBITORS OF TRNA-GUANINE TRANSGLYCOSYLASE'''
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[[Category: Reuter, K.]]
[[Category: Reuter, K.]]
[[Category: Stubbs, M T.]]
[[Category: Stubbs, M T.]]
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[[Category: glycosyltransferase]]
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[[Category: Glycosyltransferase]]
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[[Category: trna-modifying enzyme]]
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[[Category: Trna-modifying enzyme]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 15:50:44 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 20:15:00 2008''
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Revision as of 12:50, 2 May 2008

Image:1f3e.jpg

Template:STRUCTURE 1f3e

A NEW TARGET FOR SHIGELLOSIS: RATIONAL DESIGN AND CRYSTALLOGRAPHIC STUDIES OF INHIBITORS OF TRNA-GUANINE TRANSGLYCOSYLASE


Overview

Eubacterial tRNA-guanine transglycosylase (TGT) is involved in the hyper-modification of cognate tRNAs leading to the exchange of G34 at the wobble position in the anticodon loop by preQ1 (2-amino-5-(aminomethyl)pyrrolo[2,3-d]pyrimidin-4(3H)-one) as part of the biosynthesis of queuine (Q). Mutation of the tgt gene in Shigella flexneri results in a significant loss of pathogenicity of the bacterium, revealing TGT as a new target for the design of potent drugs against Shigellosis. The X-ray structure of Zymomonas mobilis TGT in complex with preQ1 was used to search for new putative inhibitors with the computer program LUDI. An initial screen of the Available Chemical Directory, a database compiled from commercially available compounds, suggested several hits. Of these, 4-aminophthalhydrazide (APH) showed an inhibition constant in the low micromolar range. The 1.95 A crystal structure of APH in complex with Z. mobilis TGT served as a starting point for further modification of this initial lead.

About this Structure

1F3E is a Single protein structure of sequence from Zymomonas mobilis. Full crystallographic information is available from OCA.

Reference

A new target for shigellosis: rational design and crystallographic studies of inhibitors of tRNA-guanine transglycosylase., Gradler U, Gerber HD, Goodenough-Lashua DM, Garcia GA, Ficner R, Reuter K, Stubbs MT, Klebe G, J Mol Biol. 2001 Feb 23;306(3):455-67. PMID:11178905 Page seeded by OCA on Fri May 2 15:50:44 2008

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