Crystal structure of eukaryotic Mre11 catalytic domain from Chaetomium thermophilum

Experimental Data Snapshot

  • Resolution: 2.78 Å
  • R-Value Free: 0.231 
  • R-Value Work: 0.198 
  • R-Value Observed: 0.202 

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This is version 1.2 of the entry. See complete history


Structure of the catalytic domain of Mre11 from Chaetomium thermophilum.

Seifert, F.U.Lammens, K.Hopfner, K.P.

(2015) Acta Crystallogr F Struct Biol Commun 71: 752-757

  • DOI: https://doi.org/10.1107/S2053230X15007566
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    Together with the Rad50 ATPase, the Mre11 nuclease forms an evolutionarily conserved protein complex that plays a central role in the repair of DNA double-strand breaks (DSBs). Mre11-Rad50 detects and processes DNA ends, and has functions in the tethering as well as the signalling of DSBs. The Mre11 dimer can bind one or two DNA ends or hairpins, and processes DNA endonucleolytically as well as exonucleolytically in the 3'-to-5' direction. Here, the crystal structure of the Mre11 catalytic domain dimer from Chaetomium thermophilum (CtMre11(CD)) is reported. CtMre11(CD) crystals diffracted to 2.8 Å resolution and revealed previously undefined features within the dimer interface, in particular fully ordered eukaryote-specific insertion loops that considerably expand the dimer interface. Furthermore, comparison with other eukaryotic Mre11 structures reveals differences in the conformations of the dimer and the capping domain. In summary, the results reported here provide new insights into the architecture of the eukaryotic Mre11 dimer.

  • Organizational Affiliation

    Gene Center and Department of Biochemistry, Ludwig-Maximilians-University Munich, Feodor-Lynen-Strasse 25, 81377 Munich, Germany.

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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
A, B
548Thermochaetoides thermophila DSM 1495Mutation(s): 0 
Gene Names: CTHT_0007600
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
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 2.78 Å
  • R-Value Free: 0.231 
  • R-Value Work: 0.198 
  • R-Value Observed: 0.202 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 56.722α = 90
b = 56.555β = 90
c = 304.562γ = 90
Software Package:
Software NamePurpose
XDSdata reduction
Cootmodel building
XDSdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2015-06-03
    Type: Initial release
  • Version 1.1: 2015-06-17
    Changes: Database references
  • Version 1.2: 2024-01-10
    Changes: Data collection, Database references, Derived calculations, Refinement description