4Q47

Structure of the DrRecQ Catalytic Core in complex with ADP


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.90 Å
  • R-Value Free: 0.295 
  • R-Value Work: 0.222 
  • R-Value Observed: 0.227 

Starting Model: experimental
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Literature

Crystal structure of Deinococcus radiodurans RecQ helicase catalytic core domain: the interdomain flexibility.

Chen, S.C.Huang, C.H.Yang, C.S.Way, T.D.Chang, M.C.Chen, Y.

(2014) Biomed Res Int 2014: 342725-342725

  • DOI: https://doi.org/10.1155/2014/342725
  • Primary Citation of Related Structures:  
    4Q47, 4Q48

  • PubMed Abstract: 

    RecQ DNA helicases are key enzymes in the maintenance of genome integrity, and they have functions in DNA replication, recombination, and repair. In contrast to most RecQs, RecQ from Deinococcus radiodurans (DrRecQ) possesses an unusual domain architecture that is crucial for its remarkable ability to repair DNA. Here, we determined the crystal structures of the DrRecQ helicase catalytic core and its ADP-bound form, revealing interdomain flexibility in its first RecA-like and winged-helix (WH) domains. Additionally, the WH domain of DrRecQ is positioned in a different orientation from that of the E. coli RecQ (EcRecQ). These results suggest that the orientation of the protein during DNA-binding is significantly different when comparing DrRecQ and EcRecQ.


  • Organizational Affiliation

    Department of Biotechnology, Hungkuang University, Taichung 433, Taiwan ; Taiwan Advance Biopharm (TABP), Inc., Xizhi City, New Taipei City 221, Taiwan.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
DNA helicase RecQ
A, B
525Deinococcus radiodurans R1 = ATCC 13939 = DSM 20539Mutation(s): 0 
Gene Names: DR_1289
EC: 5.6.2.4
UniProt
Find proteins for Q9RUU2 (Deinococcus radiodurans (strain ATCC 13939 / DSM 20539 / JCM 16871 / CCUG 27074 / LMG 4051 / NBRC 15346 / NCIMB 9279 / VKM B-1422 / R1))
Explore Q9RUU2 
Go to UniProtKB:  Q9RUU2
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9RUU2
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.90 Å
  • R-Value Free: 0.295 
  • R-Value Work: 0.222 
  • R-Value Observed: 0.227 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 84.756α = 90
b = 95.61β = 90
c = 183.832γ = 90
Software Package:
Software NamePurpose
HKL-2000data collection
PHASERphasing
PHENIXrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2015-05-20
    Type: Initial release
  • Version 1.1: 2023-11-08
    Changes: Data collection, Database references, Derived calculations, Refinement description