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New page: left|200px<br /><applet load="1gln" size="450" color="white" frame="true" align="right" spinBox="true" caption="1gln, resolution 2.5Å" /> '''ARCHITECTURES OF CLAS...
 
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[[Image:1gln.gif|left|200px]]<br /><applet load="1gln" size="450" color="white" frame="true" align="right" spinBox="true"
caption="1gln, resolution 2.5&Aring;" />
'''ARCHITECTURES OF CLASS-DEFINING AND SPECIFIC DOMAINS OF GLUTAMYL-TRNA SYNTHETASE'''<br />


==Overview==
==ARCHITECTURES OF CLASS-DEFINING AND SPECIFIC DOMAINS OF GLUTAMYL-TRNA SYNTHETASE==
The crystal structure of a class I aminoacyl-transfer RNA synthetase, glutamyl-tRNA synthetase (GluRS) from Thermus thermophilus, was solved and, refined at 2.5 A resolution. The amino-terminal half of GluRS shows a, geometrical similarity with that of Escherichia coli glutaminyl-tRNA, synthetase (GlnRS) of the same subclass in class I, comprising the class, I-specific Rossmann fold domain and the intervening subclass-specific, alpha/beta domain. These domains were found to have two GluRS-specific, secondary-structure insertions, which then participated in the specific, recognition of the D and acceptor stems of tRNA(Glu) as indicated by, mutagenesis analyses based on the docking properties of GluRS and tRNA. In, striking contrast to the beta-barrel structure of the GlnRS, carboxyl-terminal half, the GluRS carboxyl-terminal half displayed an, all-alpha-helix architecture, an alpha-helix cage, and mutagenesis, analyses indicated that it had a role in the anticodon recognition.
<StructureSection load='1gln' size='340' side='right'caption='[[1gln]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[1gln]] 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=1GLN OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1GLN 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]] 2.5&#8491;</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=1gln FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1gln OCA], [https://pdbe.org/1gln PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1gln RCSB], [https://www.ebi.ac.uk/pdbsum/1gln PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1gln ProSAT], [https://www.topsan.org/Proteins/RSGI/1gln TOPSAN]</span></td></tr>
</table>
== Function ==
[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>
== 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/gl/1gln_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=1gln ConSurf].
<div style="clear:both"></div>


==About this Structure==
==See Also==
1GLN is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Thermus_thermophilus Thermus thermophilus]. Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=1GLN OCA].
*[[Aminoacyl tRNA synthetase 3D structures|Aminoacyl tRNA synthetase 3D structures]]
 
== References ==
==Reference==
<references/>
Architectures of class-defining and specific domains of glutamyl-tRNA synthetase., Nureki O, Vassylyev DG, Katayanagi K, Shimizu T, Sekine S, Kigawa T, Miyazawa T, Yokoyama S, Morikawa K, Science. 1995 Mar 31;267(5206):1958-65. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=7701318 7701318]
__TOC__
[[Category: Single protein]]
</StructureSection>
[[Category: Thermus thermophilus]]
[[Category: Large Structures]]
[[Category: Katayanagi, K.]]
[[Category: Thermus thermophilus HB8]]
[[Category: Kigawa, T.]]
[[Category: Katayanagi K]]
[[Category: Miyazawa, T.]]
[[Category: Kigawa T]]
[[Category: Morikawa, K.]]
[[Category: Miyazawa T]]
[[Category: Nureki, O.]]
[[Category: Morikawa K]]
[[Category: RSGI, RIKEN.Structural.Genomics/Proteomics.Initiative.]]
[[Category: Nureki O]]
[[Category: Sekine, S.]]
[[Category: Sekine S]]
[[Category: Shimizu, T.]]
[[Category: Shimizu T]]
[[Category: Vassylyev, D.G.]]
[[Category: Vassylyev DG]]
[[Category: Yokoyama, S.]]
[[Category: Yokoyama S]]
[[Category: riken structural genomics/proteomics initiative]]
[[Category: rsgi]]
[[Category: structural genomics]]
 
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