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| | ==Crystal structure of a tryptophanyl-tRNA synthetase from Encephalitozoon cuniculi bound to tryptophan== | | ==Crystal structure of a tryptophanyl-tRNA synthetase from Encephalitozoon cuniculi bound to tryptophan== |
| - | <StructureSection load='3tze' size='340' side='right' caption='[[3tze]], [[Resolution|resolution]] 2.60Å' scene=''> | + | <StructureSection load='3tze' size='340' side='right'caption='[[3tze]], [[Resolution|resolution]] 2.60Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[3tze]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3TZE OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3TZE FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[3tze]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Encephalitozoon_cuniculi_GB-M1 Encephalitozoon cuniculi GB-M1]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3TZE OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3TZE FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=K:POTASSIUM+ION'>K</scene>, <scene name='pdbligand=TRP:TRYPTOPHAN'>TRP</scene></td></tr> | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.6Å</td></tr> |
| - | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2quh|2quh]], [[3foc|3foc]], [[3hv0|3hv0]], [[3i05|3i05]], [[3hzr|3hzr]]</td></tr> | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=K:POTASSIUM+ION'>K</scene>, <scene name='pdbligand=TRP:TRYPTOPHAN'>TRP</scene></td></tr> |
| - | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Tryptophan--tRNA_ligase Tryptophan--tRNA ligase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=6.1.1.2 6.1.1.2] </span></td></tr>
| + | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=3tze FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3tze OCA], [https://pdbe.org/3tze PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3tze RCSB], [https://www.ebi.ac.uk/pdbsum/3tze PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3tze ProSAT]</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=3tze FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3tze OCA], [http://pdbe.org/3tze PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3tze RCSB], [http://www.ebi.ac.uk/pdbsum/3tze PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3tze ProSAT]</span></td></tr> | + | |
| | </table> | | </table> |
| - | <div style="background-color:#fffaf0;">
| + | == Function == |
| - | == Publication Abstract from PubMed == | + | [https://www.uniprot.org/uniprot/SYW_ENCCU SYW_ENCCU] |
| - | Aminoacyl-tRNA synthetases (aaRSs) charge tRNAs with their cognate amino acid, an essential precursor step to loading of charged tRNAs onto the ribosome and addition of the amino acid to the growing polypeptide chain during protein synthesis. Because of this important biological function, aminoacyl-tRNA synthetases have been the focus of anti-infective drug development efforts and two aaRS inhibitors have been approved as drugs. Several researchers in the scientific community requested aminoacyl-tRNA synthetases to be targeted in the Seattle Structural Genomics Center for Infectious Disease (SSGCID) structure determination pipeline. Here we investigate thirty-one aminoacyl-tRNA synthetases from infectious disease organisms by co-crystallization in the presence of their cognate amino acid, ATP, and/or inhibitors. Crystal structures were determined for a CysRS from Borrelia burgdorferi bound to AMP, GluRS from Borrelia burgdorferi and Burkholderia thailandensis bound to glutamic acid, a TrpRS from the eukaryotic pathogen Encephalitozoon cuniculi bound to tryptophan, a HisRS from Burkholderia thailandensis bound to histidine, and a LysRS from Burkholderia thailandensis bound to lysine. Thus, the presence of ligands may promote aaRS crystallization and structure determination. Comparison with homologous structures shows conformational flexibility that appears to be a recurring theme with this enzyme class.
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| - | Ligand co-crystallization of aminoacyl-tRNA synthetases from infectious disease organisms.,Moen SO, Edwards TE, Dranow DM, Clifton MC, Sankaran B, Van Voorhis WC, Sharma A, Manoil C, Staker BL, Myler PJ, Lorimer DD Sci Rep. 2017 Mar 16;7(1):223. doi: 10.1038/s41598-017-00367-6. PMID:28303005<ref>PMID:28303005</ref>
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| - | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
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| - | </div>
| + | |
| - | <div class="pdbe-citations 3tze" style="background-color:#fffaf0;"></div>
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| - | | + | |
| - | ==See Also==
| + | |
| - | *[[Aminoacyl tRNA Synthetase|Aminoacyl tRNA Synthetase]]
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| - | == References ==
| + | |
| - | <references/>
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| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Tryptophan--tRNA ligase]] | + | [[Category: Encephalitozoon cuniculi GB-M1]] |
| - | [[Category: Structural genomic]]
| + | [[Category: Large Structures]] |
| - | [[Category: Amino acylation]]
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| - | [[Category: Eukaryotic pathogen]]
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| - | [[Category: Fungi]]
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| - | [[Category: Intracellular parasite]]
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| - | [[Category: Ligase]]
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| - | [[Category: Microsporidia]]
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| - | [[Category: Ssgcid]] | + | |
