4BU0

Crystal structure of Rad4 BRCT1,2 in complex with a Crb2 phosphopeptide


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.5 Å
  • R-Value Free: 0.194 
  • R-Value Work: 0.172 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Phosphorylation-Dependent Assembly and Coordination of the DNA Damage Checkpoint Apparatus by Rad4(Topbp1.).

Qu, M.Rappas, M.Wardlaw, C.P.Garcia, V.Ren, J.Y.Day, M.Carr, A.M.Oliver, A.W.Du, L.L.Pearl, L.H.

(2013) Mol.Cell 51: 723

  • DOI: 10.1016/j.molcel.2013.08.030
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The BRCT-domain protein Rad4(TopBP1) facilitates activation of the DNA damage checkpoint in Schizosaccharomyces pombe by physically coupling the Rad9-Rad1-Hus1 clamp, the Rad3(ATR) -Rad26(ATRIP) kinase complex, and the Crb2(53BP1) mediator. We have n ...

    The BRCT-domain protein Rad4(TopBP1) facilitates activation of the DNA damage checkpoint in Schizosaccharomyces pombe by physically coupling the Rad9-Rad1-Hus1 clamp, the Rad3(ATR) -Rad26(ATRIP) kinase complex, and the Crb2(53BP1) mediator. We have now determined crystal structures of the BRCT repeats of Rad4(TopBP1), revealing a distinctive domain architecture, and characterized their phosphorylation-dependent interactions with Rad9 and Crb2(53BP1). We identify a cluster of phosphorylation sites in the N-terminal region of Crb2(53BP1) that mediate interaction with Rad4(TopBP1) and reveal a hierarchical phosphorylation mechanism in which phosphorylation of Crb2(53BP1) residues Thr215 and Thr235 promotes phosphorylation of the noncanonical Thr187 site by scaffolding cyclin-dependent kinase (CDK) recruitment. Finally, we show that the simultaneous interaction of a single Rad4(TopBP1) molecule with both Thr187 phosphorylation sites in a Crb2(53BP1) dimer is essential for establishing the DNA damage checkpoint.


    Organizational Affiliation

    National Institute of Biological Sciences, 7 Science Park Road, ZGC Life Science Park, Beijing 102206, China.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
S-M CHECKPOINT CONTROL PROTEIN RAD4
A
186Schizosaccharomyces pombe (strain 972 / ATCC 24843)Mutation(s): 0 
Gene Names: rad4 (cut5)
Find proteins for P32372 (Schizosaccharomyces pombe (strain 972 / ATCC 24843))
Go to UniProtKB:  P32372
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
DNA REPAIR PROTEIN RHP9
B, C
16Schizosaccharomyces pombe (strain 972 / ATCC 24843)Mutation(s): 0 
Gene Names: crb2 (rhp9)
Find proteins for P87074 (Schizosaccharomyces pombe (strain 972 / ATCC 24843))
Go to UniProtKB:  P87074
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ACT
Query on ACT

Download SDF File 
Download CCD File 
C
ACETATE ION
C2 H3 O2
QTBSBXVTEAMEQO-UHFFFAOYSA-M
 Ligand Interaction
GOL
Query on GOL

Download SDF File 
Download CCD File 
A
GLYCEROL
GLYCERIN; PROPANE-1,2,3-TRIOL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
TPO
Query on TPO
B, C
L-PEPTIDE LINKINGC4 H10 N O6 PTHR
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.5 Å
  • R-Value Free: 0.194 
  • R-Value Work: 0.172 
  • Space Group: P 21 21 2
Unit Cell:
Length (Å)Angle (°)
a = 84.823α = 90.00
b = 63.720β = 90.00
c = 53.557γ = 90.00
Software Package:
Software NamePurpose
SCALAdata scaling
BUSTERrefinement
iMOSFLMdata reduction
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-10-09
    Type: Initial release