3W03

XLF-XRCC4 complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 8.49 Å
  • R-Value Free: 0.360 
  • R-Value Work: 0.363 
  • R-Value Observed: 0.362 

wwPDB Validation   3D Report Full Report


This is version 1.0 of the entry. See complete history


Literature

Non-homologous end-joining partners in a helical dance: structural studies of XLF-XRCC4 interactions

Wu, Q.Ochi, T.Matak-Vinkovic, D.Robinson, C.V.Chirgadze, D.Y.Blundell, T.L.

(2011) Biochem Soc Trans 39: 1387-1392

  • DOI: 10.1042/BST0391387
  • Primary Citation of Related Structures:  
    3W03

  • PubMed Abstract: 
  • XRCC4 (X-ray cross-complementation group 4) and XLF (XRCC4-like factor) are two essential interacting proteins in the human NHEJ (non-homologous end-joining) pathway that repairs DNA DSBs (double-strand breaks). The individual crystal structures show that the dimeric proteins are homologues with protomers containing head domains and helical coiled-coil tails related by approximate two-fold symmetry ...

    XRCC4 (X-ray cross-complementation group 4) and XLF (XRCC4-like factor) are two essential interacting proteins in the human NHEJ (non-homologous end-joining) pathway that repairs DNA DSBs (double-strand breaks). The individual crystal structures show that the dimeric proteins are homologues with protomers containing head domains and helical coiled-coil tails related by approximate two-fold symmetry. Biochemical, mutagenesis, biophysical and structural studies have identified the regions of interaction between the two proteins and suggested models for the XLF-XRCC4 complex. An 8.5 Å (1 Å = 0.1 nm) resolution crystal structure of XLF-XRCC4 solved by molecular replacement, together with gel filtration and nano-ESI (nano-electrospray ionization)-MS results, demonstrates that XLF and XRCC4 dimers interact through their head domains and form an alternating left-handed helical structure with polypeptide coiled coils and pseudo-dyads of individual XLF and XRCC4 dimers at right angles to the helical axis.


    Organizational Affiliation

    Department of Biochemistry, University of Cambridge, Tennis Court Road, Cambridge CB2 1GA, UK. qw222@cam.ac.uk



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Non-homologous end-joining factor 1A, B235Homo sapiensMutation(s): 0 
Gene Names: NHEJ1XLF
UniProt & NIH Common Fund Data Resources
Find proteins for Q9H9Q4 (Homo sapiens)
Explore Q9H9Q4 
Go to UniProtKB:  Q9H9Q4
PHAROS:  Q9H9Q4
Protein Feature View
Expand
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
DNA repair protein XRCC4C, D184Homo sapiensMutation(s): 0 
Gene Names: XRCC4
UniProt & NIH Common Fund Data Resources
Find proteins for Q13426 (Homo sapiens)
Explore Q13426 
Go to UniProtKB:  Q13426
PHAROS:  Q13426
Protein Feature View
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 8.49 Å
  • R-Value Free: 0.360 
  • R-Value Work: 0.363 
  • R-Value Observed: 0.362 
  • Space Group: P 65
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 236.762α = 90
b = 236.762β = 90
c = 103.229γ = 120
Software Package:
Software NamePurpose
ADSCdata collection
PHENIXmodel building
PHENIXrefinement
DENZOdata reduction
SCALEPACKdata scaling
PHENIXphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2012-11-07
    Type: Initial release