3VA4

Crystal structure of the mammalian MDC1 FHA domain complexed with CHK2 pThr68 peptide


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.54 Å
  • R-Value Free: 0.205 
  • R-Value Work: 0.159 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Structural Delineation of MDC1-FHA Domain Binding with CHK2-pThr68.

Wu, H.H.Wu, P.Y.Huang, K.F.Kao, Y.Y.Tsai, M.D.

(2012) Biochemistry --: --

  • DOI: 10.1021/bi201709w
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Mammalian MDC1 interacts with CHK2 in the regulation of DNA damage-induced S-phase checkpoint and apoptosis, which is directed by the association of MDC1-FHA and CHK2-pThr68. However, different ligand specificities of MDC1-FHA have been reported, and ...

    Mammalian MDC1 interacts with CHK2 in the regulation of DNA damage-induced S-phase checkpoint and apoptosis, which is directed by the association of MDC1-FHA and CHK2-pThr68. However, different ligand specificities of MDC1-FHA have been reported, and no structure is available. Here we report the crystal structures of MDC1-FHA and its complex with a CHK2 peptide containing pThr68. Unlike other FHA domains, MDC1-FHA exists as an intrinsic dimer in solution and in crystals. Structural and binding analyses support pThr+3 ligand specificity and provide structural insight into MDC1-CHK2 interaction.


    Organizational Affiliation

    Institute of Biological Chemistry, Academia Sinica, Nankang, Taipei 115, Taiwan.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Mediator of DNA damage checkpoint protein 1
A, B
132Mus musculusMutation(s): 0 
Gene Names: Mdc1 (Kiaa0170)
Find proteins for Q5PSV9 (Mus musculus)
Go to UniProtKB:  Q5PSV9
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Serine/threonine-protein kinase Chk2
C
11Homo sapiensMutation(s): 0 
Gene Names: CHEK2 (CDS1, CHK2, RAD53)
EC: 2.7.11.1
Find proteins for O96017 (Homo sapiens)
Go to Gene View: CHEK2
Go to UniProtKB:  O96017
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
TPO
Query on TPO
C
L-PEPTIDE LINKINGC4 H10 N O6 PTHR
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.54 Å
  • R-Value Free: 0.205 
  • R-Value Work: 0.159 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 28.508α = 90.00
b = 70.224β = 90.00
c = 101.335γ = 90.00
Software Package:
Software NamePurpose
SHELXSphasing
HKL-2000data collection
HKL-2000data reduction
REFMACrefinement
HKL-2000data scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-02-01
    Type: Initial release