2hqt
From Proteopedia
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| - | {{Seed}} | ||
| - | [[Image:2hqt.png|left|200px]] | ||
| - | + | ==Crystal structures of the interacting domains from yeast glutamyl-tRNA synthetase and tRNA aminoacylation and nuclear export cofactor Arc1p reveal a novel function for an old fold== | |
| - | + | <StructureSection load='2hqt' size='340' side='right'caption='[[2hqt]], [[Resolution|resolution]] 1.90Å' scene=''> | |
| - | + | == Structural highlights == | |
| - | + | <table><tr><td colspan='2'>[[2hqt]] is a 20 chain structure with sequence from [https://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2HQT OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2HQT FirstGlance]. <br> | |
| - | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.9Å</td></tr> | |
| - | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></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=2hqt FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2hqt OCA], [https://pdbe.org/2hqt PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2hqt RCSB], [https://www.ebi.ac.uk/pdbsum/2hqt PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2hqt ProSAT]</span></td></tr> | |
| - | + | </table> | |
| - | + | == Function == | |
| - | + | [https://www.uniprot.org/uniprot/ARC1_YEAST ARC1_YEAST] Binds to tRNA and functions as a cofactor for the methionyl-tRNA synthetase (MetRS) and glutamyl-tRNA synthetase (GluRS). Forms a complex with MetRS and GluRS and increases their affinity for cognate tRNAs due to the presence of a tRNA binding domain in its middle and C-terminal part. Binds specifically G4 quadruplex nucleic acid structures (these are four-stranded right-handed helices, stabilized by guanine base quartets). Also required for cytoplasmic confinement of the synthetases and tRNA.<ref>PMID:11069915</ref> <ref>PMID:17131041</ref> <ref>PMID:8895587</ref> <ref>PMID:9659920</ref> | |
| - | + | == Evolutionary Conservation == | |
| - | < | + | [[Image:Consurf_key_small.gif|200px|right]] |
| - | + | Check<jmol> | |
| - | + | <jmolCheckbox> | |
| - | + | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/hq/2hqt_consurf.spt"</scriptWhenChecked> | |
| - | + | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | |
| - | + | <text>to colour the structure by Evolutionary Conservation</text> | |
| - | == | + | </jmolCheckbox> |
| - | + | </jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=2hqt ConSurf]. | |
| - | + | <div style="clear:both"></div> | |
| - | == | + | == References == |
| - | < | + | <references/> |
| + | __TOC__ | ||
| + | </StructureSection> | ||
| + | [[Category: Large Structures]] | ||
[[Category: Saccharomyces cerevisiae]] | [[Category: Saccharomyces cerevisiae]] | ||
| - | [[Category: Hothorn | + | [[Category: Hothorn M]] |
| - | [[Category: Simader | + | [[Category: Simader H]] |
| - | [[Category: Suck | + | [[Category: Suck D]] |
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Current revision
Crystal structures of the interacting domains from yeast glutamyl-tRNA synthetase and tRNA aminoacylation and nuclear export cofactor Arc1p reveal a novel function for an old fold
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