2d6f

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[[Image:2d6f.gif|left|200px]]
[[Image:2d6f.gif|left|200px]]
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{{Structure
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|PDB= 2d6f |SIZE=350|CAPTION= <scene name='initialview01'>2d6f</scene>, resolution 3.15&Aring;
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The line below this paragraph, containing "STRUCTURE_2d6f", creates the "Structure Box" on the page.
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|LIGAND= <scene name='pdbligand=A:ADENOSINE-5&#39;-MONOPHOSPHATE'>A</scene>, <scene name='pdbligand=C:CYTIDINE-5&#39;-MONOPHOSPHATE'>C</scene>, <scene name='pdbligand=G:GUANOSINE-5&#39;-MONOPHOSPHATE'>G</scene>, <scene name='pdbligand=U:URIDINE-5&#39;-MONOPHOSPHATE'>U</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene>
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{{STRUCTURE_2d6f| PDB=2d6f | SCENE= }}
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|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2d6f FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2d6f OCA], [http://www.ebi.ac.uk/pdbsum/2d6f PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=2d6f RCSB]</span>
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'''Crystal structure of Glu-tRNA(Gln) amidotransferase in the complex with tRNA(Gln)'''
'''Crystal structure of Glu-tRNA(Gln) amidotransferase in the complex with tRNA(Gln)'''
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[[Category: Protein complex]]
[[Category: Protein complex]]
[[Category: Nureki, O.]]
[[Category: Nureki, O.]]
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[[Category: ligase]]
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[[Category: Ligase]]
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[[Category: rna]]
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[[Category: Rna]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 23:47:15 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 02:30:50 2008''
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Revision as of 20:47, 3 May 2008

Image:2d6f.gif

Template:STRUCTURE 2d6f

Crystal structure of Glu-tRNA(Gln) amidotransferase in the complex with tRNA(Gln)


Overview

Glutaminyl-transfer RNA (Gln-tRNA(Gln)) in archaea is synthesized in a pretranslational amidation of misacylated Glu-tRNA(Gln) by the heterodimeric Glu-tRNA(Gln) amidotransferase GatDE. Here we report the crystal structure of the Methanothermobacter thermautotrophicus GatDE complexed to tRNA(Gln) at 3.15 angstroms resolution. Biochemical analysis of GatDE and of tRNA(Gln) mutants characterized the catalytic centers for the enzyme's three reactions (glutaminase, kinase, and amidotransferase activity). A 40 angstrom-long channel for ammonia transport connects the active sites in GatD and GatE. tRNA(Gln) recognition by indirect readout based on shape complementarity of the D loop suggests an early anticodon-independent RNA-based mechanism for adding glutamine to the genetic code.

About this Structure

2D6F is a Protein complex structure of sequences from Methanothermobacter thermautotrophicus. Full crystallographic information is available from OCA.

Reference

Structural basis of RNA-dependent recruitment of glutamine to the genetic code., Oshikane H, Sheppard K, Fukai S, Nakamura Y, Ishitani R, Numata T, Sherrer RL, Feng L, Schmitt E, Panvert M, Blanquet S, Mechulam Y, Soll D, Nureki O, Science. 2006 Jun 30;312(5782):1950-4. PMID:16809540 Page seeded by OCA on Sat May 3 23:47:15 2008

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