4DRB

The crystal structure of FANCM bound MHF complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.634 Å
  • R-Value Free: 0.256 
  • R-Value Work: 0.221 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

The structure of the FANCM-MHF complex reveals physical features for functional assembly

Tao, Y.Jin, C.Li, X.Qi, S.Chu, L.Niu, L.Yao, X.Teng, M.

(2012) Nat Commun 3: 782-782

  • DOI: 10.1038/ncomms1779
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Fanconi anaemia is a rare genetic disease characterized by chromosomal instability and cancer susceptibility. The Fanconi anaemia complementation group protein M (FANCM) forms an evolutionarily conserved DNA-processing complex with MHF1/MHF2 (histone ...

    Fanconi anaemia is a rare genetic disease characterized by chromosomal instability and cancer susceptibility. The Fanconi anaemia complementation group protein M (FANCM) forms an evolutionarily conserved DNA-processing complex with MHF1/MHF2 (histone-fold-containing proteins), which is essential for DNA repair in response to genotoxic stress. Here we present the crystal structures of the MHF1-MHF2 complex alone and bound to a fragment of FANCM (FANCM(661-800), designated FANCM-F). The structures show that MHF1 and MHF2 form a compact tetramer to which FANCM-F binds through a 'dual-V' shaped structure. FANCM-F and (MHF1-MHF2)(2) cooperate to constitute a new DNA-binding site that is coupled to the canonical L1L2 region. Perturbation of the MHF-FANCM-F structural plasticity changes the localization of FANCM in vivo. The MHF-FANCM interaction and its subcellular localization are altered by a disease-associated mutant of FANCM. These findings reveal the molecular basis of MHF-FANCM recognition and provide mechanistic insights into the pathway leading to Fanconi anaemia.


    Organizational Affiliation

    Key Laboratory of Structural Biology, Chinese Academy of Sciences, Hefei, Anhui 230026, China.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Centromere protein S
A, B, D, E, G, H
120Homo sapiensMutation(s): 0 
Gene Names: CENPS (APITD1, FAAP16, MHF1)
Find proteins for Q8N2Z9 (Homo sapiens)
Go to Gene View: CENPS
Go to UniProtKB:  Q8N2Z9
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Fanconi anemia group M protein
C, F, I
141Homo sapiensMutation(s): 0 
Gene Names: FANCM (KIAA1596)
EC: 3.6.4.13
Find proteins for Q8IYD8 (Homo sapiens)
Go to Gene View: FANCM
Go to UniProtKB:  Q8IYD8
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Centromere protein X
J, K, L, M, N, O
84Homo sapiensMutation(s): 0 
Gene Names: CENPX (FAAP10, MHF2, STRA13)
Find proteins for A8MT69 (Homo sapiens)
Go to Gene View: CENPX
Go to UniProtKB:  A8MT69
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A, B, D, E, G, H, J, K, L, M, N, O
L-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.634 Å
  • R-Value Free: 0.256 
  • R-Value Work: 0.221 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 111.317α = 90.00
b = 70.025β = 91.41
c = 115.751γ = 90.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
PHENIXrefinement
AutoSolphasing
HKL-2000data reduction
HKL-2000data collection

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-05-16
    Type: Initial release