3vu8: Difference between revisions

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<StructureSection load='3vu8' size='340' side='right'caption='[[3vu8]], [[Resolution|resolution]] 2.20&Aring;' scene=''>
<StructureSection load='3vu8' size='340' side='right'caption='[[3vu8]], [[Resolution|resolution]] 2.20&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[3vu8]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Thet8 Thet8]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3VU8 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3VU8 FirstGlance]. <br>
<table><tr><td colspan='2'>[[3vu8]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Thermus_thermophilus_HB8 Thermus thermophilus HB8]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3VU8 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3VU8 FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MDS:N-[METHIONYL]-N-[ADENOSYL]-DIAMINOSULFONE'>MDS</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</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]] 2.2&#8491;</td></tr>
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[1a8h|1a8h]]</div></td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MDS:N-[METHIONYL]-N-[ADENOSYL]-DIAMINOSULFONE'>MDS</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">metS ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=300852 THET8])</td></tr>
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/Methionine--tRNA_ligase Methionine--tRNA ligase], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=6.1.1.10 6.1.1.10] </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=3vu8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3vu8 OCA], [https://pdbe.org/3vu8 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3vu8 RCSB], [https://www.ebi.ac.uk/pdbsum/3vu8 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3vu8 ProSAT]</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=3vu8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3vu8 OCA], [https://pdbe.org/3vu8 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3vu8 RCSB], [https://www.ebi.ac.uk/pdbsum/3vu8 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3vu8 ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
[[https://www.uniprot.org/uniprot/SYM_THET8 SYM_THET8]] Is required not only for elongation of protein synthesis but also for the initiation of all mRNA translation through initiator tRNA(fMet) aminoacylation.  
[https://www.uniprot.org/uniprot/SYM_THET8 SYM_THET8] Is required not only for elongation of protein synthesis but also for the initiation of all mRNA translation through initiator tRNA(fMet) aminoacylation.
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
BACKGROUND: The 20 aminoacyl-tRNA synthetases are divided into two classes, I and II. The 10 class I synthetases are considered to have in common the catalytic domain structure based on the Rossmann fold, which is totally different from the class II catalytic domain structure. The class I synthetases are further divided into three subclasses, a, b and c, according to sequence homology. No conserved structural features for tRNA recognition by class I synthetases have been established. RESULTS: We determined the crystal structure of the class Ia methionyl-tRNA synthetase (MetRS) at 2.0 A resolution, using MetRS from an extreme thermophile, Thermus thermophilus HB8. The T. thermophilus MetRS structure is in full agreement with the biochemical and genetic data from Escherichia coli MetRS. The conserved 'anticodon-binding' residues are spatially clustered on an alpha-helix-bundle domain. The Rossmann-fold and anticodon-binding domains are connected by a beta-alpha-alpha-beta-alpha topology ('SC fold') domain that contains the class I specific KMSKS motif. CONCLUSIONS: The alpha-helix-bundle domain identified in the MetRS structure is the signature of the class Ia enzymes, as it was also identified in the class Ia structures of the isoleucyl- and arginyl-tRNA synthetases. The beta-alpha-alpha-beta-alpha topology domain, which can now be identified in all known structures of the class Ia and Ib synthetases, is likely to dock with the inner side of the L-shaped tRNA, thereby positioning the anticodon stem.
 
The 2.0 A crystal structure of Thermus thermophilus methionyl-tRNA synthetase reveals two RNA-binding modules.,Sugiura I, Nureki O, Ugaji-Yoshikawa Y, Kuwabara S, Shimada A, Tateno M, Lorber B, Giege R, Moras D, Yokoyama S, Konno M Structure. 2000 Feb 15;8(2):197-208. PMID:10673435<ref>PMID:10673435</ref>
 
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 3vu8" style="background-color:#fffaf0;"></div>


==See Also==
==See Also==
*[[Aminoacyl tRNA synthetase 3D structures|Aminoacyl tRNA synthetase 3D structures]]
*[[Aminoacyl tRNA synthetase 3D structures|Aminoacyl tRNA synthetase 3D structures]]
== References ==
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Large Structures]]
[[Category: Large Structures]]
[[Category: Methionine--tRNA ligase]]
[[Category: Thermus thermophilus HB8]]
[[Category: Thet8]]
[[Category: Kato-Murayama M]]
[[Category: Kato-Murayama, M]]
[[Category: Konno M]]
[[Category: Konno, M]]
[[Category: Nureki O]]
[[Category: Nureki, O]]
[[Category: Toma-Fukai S]]
[[Category: Toma-Fukai, S]]
[[Category: Uchikawa E]]
[[Category: Uchikawa, E]]
[[Category: Yokoyama S]]
[[Category: Yokoyama, S]]
[[Category: Ligase]]
[[Category: Protein met-amp complex]]

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