3SHT

Crystal structure of human MCPH1 tandem BRCT domains

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.95 Å
  • R-Value Free: 0.242 
  • R-Value Work: 0.202 
  • R-Value Observed: 0.204 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history. 


Literature

Specific recognition of phosphorylated tail of H2AX by the tandem BRCT domains of MCPH1 revealed by complex structure

Shao, Z.H., Li, F.D., Sy, S.M.-H., Yan, W., Zhang, Z., Gong, D., Wen, B., Huen, M.S.Y., Gong, Q., Wu, J., Shi, Y.

(2012) J Struct Biol 177: 459-468

  • DOI: 10.1016/j.jsb.2011.11.022
  • Primary Citation of Related Structures:  
    3SHT, 3SHV

  • PubMed Abstract: 

    • MCPH1 is especially important for linking chromatin remodeling to DNA damage response. It contains three BRCT (BRCA1-carboxyl terminal) domains. The N-terminal region directly binds with chromatin remodeling complex SWI-SNF, and the C-terminal BRCT2-BRCT ...

    MCPH1 is especially important for linking chromatin remodeling to DNA damage response. It contains three BRCT (BRCA1-carboxyl terminal) domains. The N-terminal region directly binds with chromatin remodeling complex SWI-SNF, and the C-terminal BRCT2-BRCT3 domains (tandem BRCT domains) are involved in cellular DNA damage response. The MCPH1 gene associates with evolution of brain size, and its variation can cause primary microcephaly. In this study we solve the crystal structures of MCPH1 natural variant (A761) C-terminal tandem BRCT domains alone as well as in complex with γH2AX tail. Compared with other structures of tandem BRCT domains, the most significant differences lie in phosphopeptide binding pocket. Additionally, fluorescence polarization assays demonstrate that MCPH1 tandem BRCT domains show a binding selectivity on pSer +3 and prefer to bind phosphopeptide with free COOH-terminus. Taken together, our research provides new structural insights into BRCT-phosphopeptide recognition mechanism.

    Organizational Affiliation: 

    Hefei National Laboratory for Physical Sciences at Microscale, School of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230026, PR China.



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Microcephalin A, B, C206Homo sapiensMutation(s): 0 
Gene Names: MCPH1
Find proteins for Q8NEM0 (Homo sapiens)
Explore Q8NEM0 
Go to UniProtKB:  Q8NEM0
NIH Common Fund Data Resources
PHAROS:  Q8NEM0
GTEx:  ENSG00000147316
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.95 Å
  • R-Value Free: 0.242 
  • R-Value Work: 0.202 
  • R-Value Observed: 0.204 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 46.469α = 90
b = 113.665β = 91.04
c = 74.582γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
PHASERphasing
REFMACrefinement
PDB_EXTRACTdata extraction
HKL-2000data collection

Structure Validation

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View more in-depth experimental data

Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-12-28
    Type: Initial release
  • Version 1.1: 2013-06-19
    Changes: Database references
  • Version 1.2: 2017-11-08
    Changes: Refinement description