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1y69

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|PDB= 1y69 |SIZE=350|CAPTION= <scene name='initialview01'>1y69</scene>, resolution 3.33&Aring;
|PDB= 1y69 |SIZE=350|CAPTION= <scene name='initialview01'>1y69</scene>, resolution 3.33&Aring;
|SITE=
|SITE=
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|LIGAND=
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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>
|ACTIVITY=
|ACTIVITY=
|GENE=
|GENE=
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|DOMAIN=
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|RELATEDENTRY=[[1nkw|1NKW]], [[1ek8|1EK8]]
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|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1y69 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1y69 OCA], [http://www.ebi.ac.uk/pdbsum/1y69 PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1y69 RCSB]</span>
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[[Category: rrf]]
[[Category: rrf]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 15:18:57 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 00:59:20 2008''

Revision as of 21:59, 30 March 2008

Image:1y69.gif


PDB ID 1y69

Drag the structure with the mouse to rotate
, resolution 3.33Å
Ligands: , , ,
Related: 1NKW, 1EK8


Resources: FirstGlance, OCA, PDBsum, RCSB
Coordinates: save as pdb, mmCIF, xml



RRF domain I in complex with the 50S ribosomal subunit from Deinococcus radiodurans


Overview

This study presents the crystal structure of domain I of the Escherichia coli ribosome recycling factor (RRF) bound to the Deinococcus radiodurans 50S subunit. The orientation of RRF is consistent with the position determined on a 70S-RRF complex by cryoelectron microscopy (cryo-EM). Alignment, however, requires a rotation of 7 degrees and a shift of the cryo-EM RRF by a complete turn of an alpha-helix, redefining the contacts established with ribosomal components. At 3.3 A resolution, RRF is seen to interact exclusively with ribosomal elements associated with tRNA binding and/or translocation. Furthermore, these results now provide a high-resolution structural description of the conformational changes that were suspected to occur on the 70S-RRF complex, which has implications for the synergistic action of RRF with elongation factor G (EF-G). Specifically, the tip of the universal bridge element H69 is shifted by 20 A toward h44 of the 30S subunit, suggesting that RRF primes the intersubunit bridge B2a for the action of EF-G. Collectively, our data enable a model to be proposed for the dual action of EF-G and RRF during ribosome recycling.

About this Structure

1Y69 is a Protein complex structure of sequences from Deinococcus radiodurans. Full crystallographic information is available from OCA.

Reference

X-ray crystallography study on ribosome recycling: the mechanism of binding and action of RRF on the 50S ribosomal subunit., Wilson DN, Schluenzen F, Harms JM, Yoshida T, Ohkubo T, Albrecht R, Buerger J, Kobayashi Y, Fucini P, EMBO J. 2005 Jan 26;24(2):251-60. Epub 2004 Dec 23. PMID:15616575

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