2bte: Difference between revisions
New page: left|200px<br /> <applet load="2bte" size="450" color="white" frame="true" align="right" spinBox="true" caption="2bte, resolution 2.90Å" /> '''THERMUS THERMOPHILU... |
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== | ==Thermus thermophilus Leucyl-tRNA synthetase complexed with a tRNAleu transcript in the post-editing conformation and a post- transfer editing substrate analogue== | ||
Leucyl-tRNA synthetase (LeuRS) has a specific post-transfer editing | <StructureSection load='2bte' size='340' side='right'caption='[[2bte]], [[Resolution|resolution]] 2.90Å' scene=''> | ||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[2bte]] 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=2BTE OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2BTE 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]] 2.9Å</td></tr> | |||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=2AD:2-AMINO-2-DEOXYADENOSINE'>2AD</scene>, <scene name='pdbligand=HG:MERCURY+(II)+ION'>HG</scene>, <scene name='pdbligand=LEU:LEUCINE'>LEU</scene>, <scene name='pdbligand=NVA:NORVALINE'>NVA</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</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=2bte FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2bte OCA], [https://pdbe.org/2bte PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2bte RCSB], [https://www.ebi.ac.uk/pdbsum/2bte PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2bte ProSAT], [https://www.topsan.org/Proteins/RSGI/2bte TOPSAN]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/Q7SIE4_THETH Q7SIE4_THETH] | |||
== 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/bt/2bte_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=2bte ConSurf]. | |||
<div style="clear:both"></div> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Leucyl-tRNA synthetase (LeuRS) has a specific post-transfer editing activity directed against mischarged isoleucine and similar noncognate amino acids. We describe the post-transfer-editing and product complexes of Thermus thermophilus LeuRS (LeuRSTT) with tRNA(Leu) at 2.9- to 3.3-A resolution. In the post-transfer-editing configuration, A76 binds in the editing active site exactly as previously found for the adenosine moiety of a small-molecule editing-substrate analog. The 60 C-terminal residues of LeuRSTT, unseen in previous structures, fold into a compact domain flexibly linked to the rest of the molecule and interacting with the G19-C56 tertiary base pair of tRNA(Leu). LeuRS recognition of tRNA(Leu) depends essentially on tRNA shape rather than base-specific interactions. The structures show that considerable domain rotations, notably of the editing domain, accompany the tRNA-3' end dynamics associated successively with aminoacylation, post-transfer editing and product release. | |||
The crystal structure of leucyl-tRNA synthetase complexed with tRNALeu in the post-transfer-editing conformation.,Tukalo M, Yaremchuk A, Fukunaga R, Yokoyama S, Cusack S Nat Struct Mol Biol. 2005 Oct;12(10):923-30. Epub 2005 Sep 11. PMID:16155583<ref>PMID:16155583</ref> | |||
== | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
</div> | |||
[[Category: | <div class="pdbe-citations 2bte" style="background-color:#fffaf0;"></div> | ||
==See Also== | |||
*[[Aminoacyl tRNA synthetase 3D structures|Aminoacyl tRNA synthetase 3D structures]] | |||
*[[Transfer RNA (tRNA)|Transfer RNA (tRNA)]] | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Large Structures]] | |||
[[Category: Thermus thermophilus]] | [[Category: Thermus thermophilus]] | ||
[[Category: Cusack | [[Category: Cusack S]] | ||
[[Category: Fukunaga | [[Category: Fukunaga R]] | ||
[[Category: Tukalo | [[Category: Tukalo M]] | ||
[[Category: Yaremchuk | [[Category: Yaremchuk A]] | ||
[[Category: Yokoyama | [[Category: Yokoyama S]] | ||
