Crystal structure of a deletion mutant of Deinococcus radiodurans RecN

Experimental Data Snapshot

  • Resolution: 4.00 Å
  • R-Value Free: 0.347 
  • R-Value Work: 0.325 
  • R-Value Observed: 0.326 

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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

  • DOI: https://doi.org/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.

  • Organizational Affiliation

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

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
DNA REPAIR PROTEIN RECN517Deinococcus radiodurans R1 = ATCC 13939 = DSM 20539Mutation(s): 0 
Gene Names: recNDR_1477
Find proteins for Q9WXF2 (Deinococcus radiodurans (strain ATCC 13939 / DSM 20539 / JCM 16871 / CCUG 27074 / LMG 4051 / NBRC 15346 / NCIMB 9279 / VKM B-1422 / R1))
Explore Q9WXF2 
Go to UniProtKB:  Q9WXF2
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9WXF2
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • 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 = 72.205α = 90
b = 62.487β = 98.39
c = 145.526γ = 90
Software Package:
Software NamePurpose
XDSdata reduction
SCALAdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

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