Biological Assembly 1  

 3D View: Structure | Electron Density

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 55.15 kDa 
• Atom Count: 3416 
• Modelled Residue Count: 452 
• Deposited Residue Count: 517 
• Unique protein chains: 1

4AD8

Crystal structure of a deletion mutant of Deinococcus radiodurans RecN

• DOI: 10.2210/pdb4AD8/pdb

• Classification: DNA BINDING PROTEIN
• Organism(s): Deinococcus radiodurans R1
• Expression System: Escherichia coli BL21
• Mutation(s): No 


• Deposited: 2011-12-22 Released: 2012-12-12 
• Deposition Author(s): Pellegrino, S., Radzimanowski, J., de Sanctis, D., McSweeney, S., Timmins, J.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 4.00 Å
• R-Value Free: 0.347 
• R-Value Work: 0.325 
• R-Value Observed: 0.326 

Literature

Structural and Functional Characterization of an Smc-Like Protein Recn: New Insights Into Double-Strand Break Repair.

Pellegrino, S., Radzimanowski, J., De Sanctis, D., Erba, E.B., Mcsweeney, S., Timmins, J.

(2012) Structure 20: 2076

• PubMed: 23085075 
• DOI: 10.1016/j.str.2012.09.010
• Primary Citation of Related Structures:  
  4ABX, 4ABY, 4AD8


• PubMed Abstract: 
  

Repair of DNA double-strand breaks (DSBs) is essential for cell survival and maintaining genome integrity. DSBs are repaired in a stepwise manner by homologous recombination. Here, we focused on the early steps of DSB repair, including DSB recognition, which is still only poorly understood. In prokaryotes, this process has been proposed to involve the RecN protein, a member of the structural maintenance of chromosome (SMC) protein family, which include key eukaryotic and prokaryotic proteins such as cohesin, condensin, and Rad50. An extensive high- and low-resolution structural analysis of Deinococcus radiodurans RecN using a combination of protein crystallography and small-angle X-ray scattering enabled us to assemble a quasi-atomic model of the entire RecN protein, representing the complete structure of a SMC-like protein. These results, together with a thorough biochemical and mutational study of RecN, allow us to propose a model for the role of RecN in DSB repair.

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Organizational Affiliation: 

Structural Biology Group, European Synchrotron Radiation Facility, BP 220, 38043 Grenoble Cedex 9, France.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
DNA REPAIR PROTEIN RECN	A	517	Deinococcus radiodurans R1	Mutation(s): 0  Gene Names: recN, DR_1477 EC: 3.6.1.3
Find proteins for Q9WXF2 (Deinococcus radiodurans (strain ATCC 13939 / DSM 20539 / JCM 16871 / LMG 4051 / NBRC 15346 / NCIMB 9279 / R1 / VKM B-1422)) Explore Q9WXF2  Go to UniProtKB:  Q9WXF2

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 4.00 Å
• R-Value Free: 0.347 
• R-Value Work: 0.325 
• R-Value Observed: 0.326 
• Space Group: I 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 72.205	α = 90
b = 62.487	β = 98.39
c = 145.526	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
XDS	data reduction
SCALA	data scaling
PHASER	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2011-12-22 
• Released Date: 2012-12-12 
Deposition Author(s): Pellegrino, S., Radzimanowski, J., de Sanctis, D., McSweeney, S., Timmins, J.

Revision History  

• Version 1.0: 2012-12-12
  Type: Initial release
  
• Version 1.1: 2012-12-26
  Changes: Database references