Biological Assembly 1  

 3D View: Structure | Electron Density | Ligand Interaction

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Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 21461.70 
• Atom Count: 1453 
• Residue Count: 185 
• Unique protein chains: 1

1EK8

CRYSTAL STRUCTURE OF THE RIBOSOME RECYCLING FACTOR (RRF) FROM ESCHERICHIA COLI

• DOI: 10.2210/pdb1EK8/pdb

• Classification: TRANSLATION
• Organism(s): Escherichia coli (strain K12)
• Expression System: Escherichia coli


• Deposited: 2000-03-07 Released: 2001-03-07 
• Deposition Author(s): Min, K., Suh, S.W., Kim, K.K.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.3 Å
• R-Value Free: 0.297 
• R-Value Work: 0.228 

Literature

Crystal structure of the ribosome recycling factor from Escherichia coli.

Kim, K.K., Min, K., Suh, S.W.

(2000) EMBO J. 19: 2362-2370

• PubMed: 10811627 
• DOI: 10.1093/emboj/19.10.2362


• PubMed Abstract: 
  

We have determined the crystal structure of the Escherichia coli ribosome recycling factor (RRF), which catalyzes the disassembly of the termination complex in protein synthesis. The L-shaped molecule consists of two domains: a triple-stranded antiparallel coiled-coil and an alpha/beta domain. The coil domain has a cylindrical shape and negatively charged surface, which are reminiscent of the anticodon arm of tRNA and domain IV of elongation factor EF-G. We suggest that RRF binds to the ribosomal A-site through its coil domain, which is a tRNA mimic. The relative position of the two domains is changed about an axis along the hydrophobic cleft in the hinge where the alkyl chain of a detergent molecule is bound. The tRNA mimicry and the domain movement observed in RRF provide a structural basis for understanding the role of RRF in protein synthesis.

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Related Citations: 

• Crystallization and Preliminary Crystallographic Studies of Ribosome Recycling Factor from Escherichia coli.
  Yun, J.,Kim, W.,Ha, S.C.,Eom, S.H.,Suh, S.W.,Kim, K.K.
  (2000) Acta Crystallogr.,Sect.D 56: 84




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Organizational Affiliation: 

Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Chinju 660-701, Korea. [e-mail]

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
RIBOSOME RECYCLING FACTOR	A	185	Escherichia coli (strain K12)	Mutation(s): 0  Gene Names: frr (rrf)
Find proteins for P0A805 (Escherichia coli (strain K12)) Go to UniProtKB:  P0A805

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram & Interactions
DEM	A	DECYLOXY-METHANOL C11 H24 O2 CDMVCFBAVCCGIE-UHFFFAOYSA-N
HG	A	MERCURY (II) ION Hg BQPIGGFYSBELGY-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.3 Å
• R-Value Free: 0.297 
• R-Value Work: 0.228 
• Space Group: P 3₁ 2 1

Unit Cell:

Length (Å)	Angle (°)
a = 48.064	α = 90.00
b = 48.064	β = 90.00
c = 142.273	γ = 120.00

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
SHARP	phasing
CNS	refinement

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2000-03-07 
• Released Date: 2001-03-07 
• Deposition Author(s): Min, K., Suh, S.W., Kim, K.K.

Revision History 

• Version 1.0: 2001-03-07
  Type: Initial release
• Version 1.1: 2008-04-27
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Version format compliance