1G6G

X-RAY STRUCTURE OF THE N-TERMINAL FHA DOMAIN FROM S. CEREVISIAE RAD53P IN COMPLEX WITH A PHOSPHOTHREONINE PEPTIDE AT 1.6 A RESOLUTION


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.6 Å
  • R-Value Free: 0.244 
  • R-Value Work: 0.209 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The molecular basis of FHA domain:phosphopeptide binding specificity and implications for phospho-dependent signaling mechanisms.

Durocher, D.Taylor, I.A.Sarbassova, D.Haire, L.F.Westcott, S.L.Jackson, S.P.Smerdon, S.J.Yaffe, M.B.

(2000) Mol.Cell 6: 1169-1182


  • PubMed Abstract: 
  • Forkhead-associated (FHA) domains are a class of ubiquitous signaling modules that appear to function through interactions with phosphorylated target molecules. We have used oriented peptide library screening to determine the optimal phosphopeptide b ...

    Forkhead-associated (FHA) domains are a class of ubiquitous signaling modules that appear to function through interactions with phosphorylated target molecules. We have used oriented peptide library screening to determine the optimal phosphopeptide binding motifs recognized by several FHA domains, including those within a number of DNA damage checkpoint kinases, and determined the X-ray structure of Rad53p-FHA1, in complex with a phospho-threonine peptide, at 1.6 A resolution. The structure reveals a striking similarity to the MH2 domains of Smad tumor suppressor proteins and reveals a mode of peptide binding that differs from SH2, 14-3-3, or PTB domain complexes. These results have important implications for DNA damage signaling and CHK2-dependent tumor suppression, and they indicate that FHA domains play important and unsuspected roles in S/T kinase signaling mechanisms in prokaryotes and eukaryotes.


    Organizational Affiliation

    Wellcome Trust/Cancer Research Campaign Institute of Cancer and Developmental Biology and Department of Zoology University of Cambridge CB2 1QR, Cambridge, United Kingdom.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PROTEIN KINASE RAD53
A, B
127Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Gene Names: RAD53 (MEC2, SAD1, SPK1)
EC: 2.7.12.1
Find proteins for P22216 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P22216
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
SER-LEU-GLU-VAL-TPO-GLU-ALA-ASPALA-THR-PHE-ALA-LYS
E, F
13N/AN/A
Protein Feature View is not available: No corresponding UniProt sequence found.
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
TPO
Query on TPO
E, F
L-PEPTIDE LINKINGC4 H10 N O6 PTHR
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.6 Å
  • R-Value Free: 0.244 
  • R-Value Work: 0.209 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 33.191α = 90.00
b = 79.609β = 90.00
c = 131.467γ = 90.00
Software Package:
Software NamePurpose
DENZOdata reduction
REFMACrefinement
SOLVEphasing
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2000-12-13
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance