4Q48

Structure of the RecQ Catalytic Core from Deinococcus radiodurans


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.286 
  • R-Value Work: 0.213 
  • R-Value Observed: 0.218 

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:  
    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 ...

    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.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
DNA helicase RecQA, B525Deinococcus radiodurans R1Mutation(s): 0 
Gene Names: DR_1289
EC: 3.6.4.12
UniProt
Find proteins for Q9RUU2 (Deinococcus radiodurans (strain ATCC 13939 / DSM 20539 / JCM 16871 / LMG 4051 / NBRC 15346 / NCIMB 9279 / R1 / VKM B-1422))
Explore Q9RUU2 
Go to UniProtKB:  Q9RUU2
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download Ideal Coordinates CCD File 
C [auth A], D [auth B]ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.286 
  • R-Value Work: 0.213 
  • R-Value Observed: 0.218 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 85.791α = 90
b = 98.528β = 90
c = 152.88γ = 90
Software Package:
Software NamePurpose
HKL-2000data collection
PHASERphasing
PHENIXrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

Revision History  (Full details and data files)

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