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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== | ==Thermus thermophilus Leucyl-tRNA synthetase complexed with a tRNAleu transcript in the post-editing conformation and a post- transfer editing substrate analogue== | ||
<StructureSection load='2bte' size='340' side='right' caption='[[2bte]], [[Resolution|resolution]] 2.90Å' scene=''> | <StructureSection load='2bte' size='340' side='right'caption='[[2bte]], [[Resolution|resolution]] 2.90Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[2bte]] is a 4 chain structure with sequence from [ | <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='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><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='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> | |||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[ | |||
</table> | </table> | ||
== Function == | |||
[https://www.uniprot.org/uniprot/Q7SIE4_THETH Q7SIE4_THETH] | |||
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
[[Image:Consurf_key_small.gif|200px|right]] | [[Image:Consurf_key_small.gif|200px|right]] | ||
| Line 30: | Line 31: | ||
==See Also== | ==See Also== | ||
*[[Aminoacyl tRNA | *[[Aminoacyl tRNA synthetase 3D structures|Aminoacyl tRNA synthetase 3D structures]] | ||
*[[ | *[[Transfer RNA (tRNA)|Transfer RNA (tRNA)]] | ||
== References == | == References == | ||
<references/> | <references/> | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
[[Category: | [[Category: Large Structures]] | ||
[[Category: | [[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]] | ||
Latest revision as of 16:55, 13 December 2023
Thermus thermophilus Leucyl-tRNA synthetase complexed with a tRNAleu transcript in the post-editing conformation and a post- transfer editing substrate analogueThermus thermophilus Leucyl-tRNA synthetase complexed with a tRNAleu transcript in the post-editing conformation and a post- transfer editing substrate analogue
Structural highlights
FunctionEvolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMedLeucyl-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[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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