1h3e

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[[Image:1h3e.gif|left|200px]]
[[Image:1h3e.gif|left|200px]]
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{{Structure
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<!--
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|PDB= 1h3e |SIZE=350|CAPTION= <scene name='initialview01'>1h3e</scene>, resolution 2.90&Aring;
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The line below this paragraph, containing "STRUCTURE_1h3e", creates the "Structure Box" on the page.
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|SITE= <scene name='pdbsite=AC1:Tyb+Binding+Site+For+Chain+A'>AC1</scene>
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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|LIGAND= <scene name='pdbligand=5MU:5-METHYLURIDINE+5&#39;-MONOPHOSPHATE'>5MU</scene>, <scene name='pdbligand=A:ADENOSINE-5&#39;-MONOPHOSPHATE'>A</scene>, <scene name='pdbligand=ATP:ADENOSINE-5&#39;-TRIPHOSPHATE'>ATP</scene>, <scene name='pdbligand=C:CYTIDINE-5&#39;-MONOPHOSPHATE'>C</scene>, <scene name='pdbligand=G:GUANOSINE-5&#39;-MONOPHOSPHATE'>G</scene>, <scene name='pdbligand=MAD:6-HYDRO-1-METHYLADENOSINE-5&#39;-MONOPHOSPHATE'>MAD</scene>, <scene name='pdbligand=PSU:PSEUDOURIDINE-5&#39;-MONOPHOSPHATE'>PSU</scene>, <scene name='pdbligand=TYB:TYROSINAL'>TYB</scene>, <scene name='pdbligand=U:URIDINE-5&#39;-MONOPHOSPHATE'>U</scene>
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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|ACTIVITY= <span class='plainlinks'>[http://en.wikipedia.org/wiki/Tyrosine--tRNA_ligase Tyrosine--tRNA ligase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=6.1.1.1 6.1.1.1] </span>
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or leave the SCENE parameter empty for the default display.
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|GENE=
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|DOMAIN=
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{{STRUCTURE_1h3e| PDB=1h3e | SCENE= }}
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|RELATEDENTRY=
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|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1h3e FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1h3e OCA], [http://www.ebi.ac.uk/pdbsum/1h3e PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1h3e RCSB]</span>
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}}
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'''TYROSYL-TRNA SYNTHETASE FROM THERMUS THERMOPHILUS COMPLEXED WITH WILD-TYPE TRNATYR(GUA) AND WITH ATP AND TYROSINOL'''
'''TYROSYL-TRNA SYNTHETASE FROM THERMUS THERMOPHILUS COMPLEXED WITH WILD-TYPE TRNATYR(GUA) AND WITH ATP AND TYROSINOL'''
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[[Category: Tukalo, M.]]
[[Category: Tukalo, M.]]
[[Category: Yaremchuk, A.]]
[[Category: Yaremchuk, A.]]
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[[Category: class i aminoacyl-trna synthetase: atp + l-tyrosine + trna(tyr) -> amp + ppi + l-tyrosyl-trna(tyr)]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 18:22:54 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 20:56:56 2008''
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Revision as of 15:22, 2 May 2008

Image:1h3e.gif

Template:STRUCTURE 1h3e

TYROSYL-TRNA SYNTHETASE FROM THERMUS THERMOPHILUS COMPLEXED WITH WILD-TYPE TRNATYR(GUA) AND WITH ATP AND TYROSINOL


Overview

Bacterial tyrosyl-tRNA synthetases (TyrRS) possess a flexibly linked C-terminal domain of approximately 80 residues, which has hitherto been disordered in crystal structures of the enzyme. We have determined the structure of Thermus thermophilus TyrRS at 2.0 A resolution in a crystal form in which the C-terminal domain is ordered, and confirm that the fold is similar to part of the C-terminal domain of ribosomal protein S4. We have also determined the structure at 2.9 A resolution of the complex of T.thermophilus TyrRS with cognate tRNA(tyr)(G Psi A). In this structure, the C-terminal domain binds between the characteristic long variable arm of the tRNA and the anti-codon stem, thus recognizing the unique shape of the tRNA. The anticodon bases have a novel conformation with A-36 stacked on G-34, and both G-34 and Psi-35 are base-specifically recognized. The tRNA binds across the two subunits of the dimeric enzyme and, remarkably, the mode of recognition of the class I TyrRS for its cognate tRNA resembles that of a class II synthetase in being from the major groove side of the acceptor stem.

About this Structure

1H3E is a Protein complex structure of sequences from Thermus thermophilus. Full crystallographic information is available from OCA.

Reference

Class I tyrosyl-tRNA synthetase has a class II mode of cognate tRNA recognition., Yaremchuk A, Kriklivyi I, Tukalo M, Cusack S, EMBO J. 2002 Jul 15;21(14):3829-40. PMID:12110594 Page seeded by OCA on Fri May 2 18:22:54 2008

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