4Q48

Structure of the RecQ Catalytic Core from Deinococcus radiodurans


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.797 Å
  • R-Value Free: 0.286 
  • R-Value Work: 0.213 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

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: 10.1155/2014/342725
  • Primary Citation of Related Structures:  

  • 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 archit ...

    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 ; Institute of Biochemistry, National Chung-Hsing University, Taichung 40227, Taiwan.,Department of Biotechnology, Hungkuang University, Taichung 433, Taiwan ; Taiwan Advance Biopharm (TABP), Inc., Xizhi City, New Taipei City 221, Taiwan.,Department of Nutrition, Hungkuang University, Taichung 433, Taiwan.,Department of Biological Science and Technology, College of Life Sciences, China Medical University, Taichung 40402, Taiwan.,Department of Biotechnology, Hungkuang University, Taichung 433, Taiwan.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
DNA helicase RecQ
A, B
525Deinococcus radiodurans (strain ATCC 13939 / DSM 20539 / JCM 16871 / LMG 4051 / NBRC 15346 / NCIMB 9279 / R1 / VKM B-1422)Mutation(s): 0 
Find proteins for Q9RUU2 (Deinococcus radiodurans (strain ATCC 13939 / DSM 20539 / JCM 16871 / LMG 4051 / NBRC 15346 / NCIMB 9279 / R1 / VKM B-1422))
Go to UniProtKB:  Q9RUU2
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
A, B
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.797 Å
  • R-Value Free: 0.286 
  • R-Value Work: 0.213 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 85.791α = 90.00
b = 98.528β = 90.00
c = 152.880γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data collection
HKL-2000data scaling
PHASERphasing
PHENIXrefinement
HKL-2000data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2015-05-20
    Type: Initial release