5DA9

ATP-gamma-S bound Rad50 from Chaetomium thermophilum in complex with the Rad50-binding domain of Mre11


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.258 
  • R-Value Work: 0.216 
  • R-Value Observed: 0.218 

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Ligand Structure Quality Assessment 


This is version 1.1 of the entry. See complete history


Literature

Structural mechanism of ATP-dependent DNA binding and DNA end bridging by eukaryotic Rad50.

Seifert, F.U.Lammens, K.Stoehr, G.Kessler, B.Hopfner, K.P.

(2016) EMBO J 35: 759-772

  • DOI: https://doi.org/10.15252/embj.201592934
  • Primary Citation of Related Structures:  
    5DA9, 5DAC

  • PubMed Abstract: 

    The Mre11-Rad50-Nbs1 (MRN) complex is a central factor in the repair of DNA double-strand breaks (DSBs). The ATP-dependent mechanisms of how MRN detects and endonucleolytically processes DNA ends for the repair by microhomology-mediated end-joining or further resection in homologous recombination are still unclear. Here, we report the crystal structures of the ATPγS-bound dimer of the Rad50(NBD)(nucleotide-binding domain) from the thermophilic eukaryote Chaetomium thermophilum(Ct) in complex with either DNA or CtMre11(RBD)(Rad50-binding domain) along with small-angle X-ray scattering and cross-linking studies. The structure and DNA binding motifs were validated by DNA binding experiments in vitro and mutational analyses in Saccharomyces cerevisiae in vivo Our analyses provide a structural framework for the architecture of the eukaryotic Mre11-Rad50 complex. They show that a Rad50 dimer binds approximately 18 base pairs of DNA along the dimer interface in anATP-dependent fashion or bridges two DNA ends with a preference for 3' overhangs. Finally, our results may provide a general framework for the interaction of ABC ATPase domains of the Rad50/SMC/RecN protein family with DNA.


  • Organizational Affiliation

    Department of Biochemistry and Gene Center, Ludwig-Maximilians-University, Munich, Germany.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Putative uncharacterized protein,Putative uncharacterized protein
A, B
449Thermochaetoides thermophila DSM 1495Mutation(s): 0 
Gene Names: CTHT_0073630
EC: 3.6
UniProt
Find proteins for G0SHW7 (Chaetomium thermophilum (strain DSM 1495 / CBS 144.50 / IMI 039719))
Explore G0SHW7 
Go to UniProtKB:  G0SHW7
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupG0SHW7
Sequence Annotations
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Putative double-strand break protein
C, D
108Thermochaetoides thermophila DSM 1495Mutation(s): 0 
Gene Names: CTHT_0007600
EC: 3.1
UniProt
Find proteins for G0RYR3 (Chaetomium thermophilum (strain DSM 1495 / CBS 144.50 / IMI 039719))
Explore G0RYR3 
Go to UniProtKB:  G0RYR3
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupG0RYR3
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.258 
  • R-Value Work: 0.216 
  • R-Value Observed: 0.218 
  • Space Group: I 2 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 116.511α = 90
b = 125.086β = 90
c = 168.304γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
XDSdata scaling
SHARPphasing
Cootmodel building

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2016-03-02
    Type: Initial release
  • Version 1.1: 2024-10-09
    Changes: Data collection, Database references, Derived calculations, Structure summary