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2cv0

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[[Image:2cv0.gif|left|200px]]<br /><applet load="2cv0" size="350" color="white" frame="true" align="right" spinBox="true"
 
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caption="2cv0, resolution 2.40&Aring;" />
 
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'''Glutamyl-tRNA synthetase from Thermus thermophilus in complex with tRNA(Glu) and L-glutamate'''<br />
 
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==Overview==
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==Glutamyl-tRNA synthetase from Thermus thermophilus in complex with tRNA(Glu) and L-glutamate==
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Glutamyl-tRNA synthetase (GluRS) is one of the aminoacyl-tRNA synthetases, that require the cognate tRNA for specific amino acid recognition and, activation. We analyzed the role of tRNA in amino acid recognition by, crystallography. In the GluRS*tRNA(Glu)*Glu structure, GluRS and tRNA(Glu), collaborate to form a highly complementary L-glutamate-binding site. This, collaborative site is functional, as it is formed in the same manner in, pretransition-state mimic, GluRS*tRNA(Glu)*ATP*Eol (a glutamate analog), and posttransition-state mimic, GluRS*tRNA(Glu)*ESA (a glutamyl-adenylate, analog) structures. In contrast, in the GluRS*Glu structure, only GluRS, forms the amino acid-binding site, which is defective and accounts for the, binding of incorrect amino acids, such as D-glutamate and L-glutamine., Therefore, tRNA(Glu) is essential for formation of the completely, functional binding site for L-glutamate. These structures, together with, our previously described structures, reveal that tRNA plays a crucial role, in accurate positioning of both L-glutamate and ATP, thus driving the, amino acid activation.
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<StructureSection load='2cv0' size='340' side='right'caption='[[2cv0]], [[Resolution|resolution]] 2.40&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[2cv0]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Thermus_thermophilus Thermus thermophilus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2CV0 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2CV0 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]] 2.4&#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=GLU:GLUTAMIC+ACID'>GLU</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</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=2cv0 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2cv0 OCA], [https://pdbe.org/2cv0 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2cv0 RCSB], [https://www.ebi.ac.uk/pdbsum/2cv0 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2cv0 ProSAT], [https://www.topsan.org/Proteins/RSGI/2cv0 TOPSAN]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/SYE_THET8 SYE_THET8] Catalyzes the attachment of glutamate to tRNA(Glu) in a two-step reaction: glutamate is first activated by ATP to form Glu-AMP and then transferred to the acceptor end of tRNA(Glu).<ref>PMID:11224561</ref> <ref>PMID:17161369</ref>
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/cv/2cv0_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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</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=2cv0 ConSurf].
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<div style="clear:both"></div>
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==About this Structure==
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==See Also==
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2CV0 is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Thermus_thermophilus Thermus thermophilus] with <scene name='pdbligand=MG:'>MG</scene> and <scene name='pdbligand=GLU:'>GLU</scene> as [http://en.wikipedia.org/wiki/ligands ligands]. Active as [http://en.wikipedia.org/wiki/Glutamate--tRNA_ligase Glutamate--tRNA ligase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=6.1.1.17 6.1.1.17] Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2CV0 OCA].
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*[[Aminoacyl tRNA synthetase 3D structures|Aminoacyl tRNA synthetase 3D structures]]
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*[[Transfer RNA (tRNA)|Transfer RNA (tRNA)]]
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==Reference==
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== References ==
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Structural bases of transfer RNA-dependent amino acid recognition and activation by glutamyl-tRNA synthetase., Sekine S, Shichiri M, Bernier S, Chenevert R, Lapointe J, Yokoyama S, Structure. 2006 Dec;14(12):1791-9. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=17161369 17161369]
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<references/>
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[[Category: Glutamate--tRNA ligase]]
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__TOC__
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[[Category: Single protein]]
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</StructureSection>
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[[Category: Large Structures]]
[[Category: Thermus thermophilus]]
[[Category: Thermus thermophilus]]
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[[Category: RSGI, RIKEN.Structural.Genomics/Proteomics.Initiative.]]
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[[Category: Sekine S]]
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[[Category: Sekine, S.]]
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[[Category: Yokoyama S]]
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[[Category: Yokoyama, S.]]
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[[Category: GLU]]
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[[Category: MG]]
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[[Category: ligase]]
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[[Category: national project on protein structural and functional analyses]]
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[[Category: nppsfa]]
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[[Category: riken structural genomics/proteomics initiative]]
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[[Category: rna]]
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[[Category: rsgi]]
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[[Category: structural genomics]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Wed Jan 23 13:48:48 2008''
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Current revision

Glutamyl-tRNA synthetase from Thermus thermophilus in complex with tRNA(Glu) and L-glutamate

PDB ID 2cv0

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