4eg3

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[[Image:4eg3.jpg|left|200px]]
 
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{{STRUCTURE_4eg3| PDB=4eg3 | SCENE= }}
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==Trypanosoma brucei methionyl-tRNA synthetase in complex with product methionyl-adenylate==
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<StructureSection load='4eg3' size='340' side='right'caption='[[4eg3]], [[Resolution|resolution]] 2.94&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[4eg3]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Trypanosoma_brucei_brucei_TREU927 Trypanosoma brucei brucei TREU927]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4EG3 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4EG3 FirstGlance]. <br>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.94&#8491;</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CAS:S-(DIMETHYLARSENIC)CYSTEINE'>CAS</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=ME8:[[(2R,3S,4R,5R)-5-(6-AMINOPURIN-9-YL)-3,4-DIHYDROXY-OXOLAN-2-YL]METHOXY-HYDROXY-PHOSPHORYL]+(2S)-2-AZANYL-4-METHYLSULFANYL-BUTANOATE'>ME8</scene></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=4eg3 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4eg3 OCA], [https://pdbe.org/4eg3 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4eg3 RCSB], [https://www.ebi.ac.uk/pdbsum/4eg3 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4eg3 ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/Q38C91_TRYB2 Q38C91_TRYB2]
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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To guide development of new drugs targeting methionyl-tRNA synthetase (MetRS) for treatment of human African trypanosomiasis, crystal structure determinations of Trypanosoma brucei MetRS in complex with its substrate methionine and its intermediate product methionyl-adenylate were followed by those of the enzyme in complex with high-affinity aminoquinolone inhibitors via soaking experiments. Drastic changes in conformation of one of the two enzymes in the asymmetric unit allowed these inhibitors to occupy an enlarged methionine pocket and a new so-called auxiliary pocket. Interestingly, a small low-affinity compound caused the same conformational changes, removed the methionine without occupying the methionine pocket, and occupied the previously not existing auxiliary pocket. Analysis of these structures indicates that the binding of the inhibitors is the result of conformational selection, not induced fit.
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===Trypanosoma brucei methionyl-tRNA synthetase in complex with product methionyl-adenylate===
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Distinct States of Methionyl-tRNA Synthetase Indicate Inhibitor Binding by Conformational Selection.,Koh CY, Kim JE, Shibata S, Ranade RM, Yu M, Liu J, Gillespie JR, Buckner FS, Verlinde CL, Fan E, Hol WG Structure. 2012 Aug 14. PMID:22902861<ref>PMID:22902861</ref>
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{{ABSTRACT_PUBMED_22902861}}
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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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==About this Structure==
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<div class="pdbe-citations 4eg3" style="background-color:#fffaf0;"></div>
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[[4eg3]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Trypanosoma_brucei_brucei Trypanosoma brucei brucei]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4EG3 OCA].
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== References ==
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[[Category: Methionine--tRNA ligase]]
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<references/>
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[[Category: Trypanosoma brucei brucei]]
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__TOC__
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[[Category: Fan, E.]]
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</StructureSection>
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[[Category: Hol, W G.J.]]
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[[Category: Large Structures]]
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[[Category: Kim, J E.]]
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[[Category: Trypanosoma brucei brucei TREU927]]
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[[Category: Koh, C Y.]]
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[[Category: Fan E]]
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[[Category: Shibata, S.]]
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[[Category: Hol WGJ]]
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[[Category: Verlinde, C L.M J.]]
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[[Category: Kim JE]]
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[[Category: Aar]]
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[[Category: Koh CY]]
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[[Category: Aminoacyl-trna synthetase]]
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[[Category: Shibata S]]
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[[Category: Ligase]]
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[[Category: Verlinde CLMJ]]
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[[Category: Metr]]
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[[Category: Nucleotide binding]]
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[[Category: Parasite]]
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[[Category: Protein-inhibitor complex]]
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[[Category: Rossmann fold]]
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[[Category: Rossmann-fold]]
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[[Category: Translation]]
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[[Category: Trna binding atp binding]]
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Current revision

Trypanosoma brucei methionyl-tRNA synthetase in complex with product methionyl-adenylate

PDB ID 4eg3

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