2PIE

Crystal structure of the FHA domain of RNF8 in complex with its optimal phosphopeptide


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.35 Å
  • R-Value Free: 0.198 
  • R-Value Work: 0.181 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

RNF8 Transduces the DNA-Damage Signal via Histone Ubiquitylation and Checkpoint Protein Assembly.

Huen, M.S.Grant, R.Manke, I.Minn, K.Yu, X.Yaffe, M.B.Chen, J.

(2007) Cell 131: 901-914

  • DOI: 10.1016/j.cell.2007.09.041

  • PubMed Abstract: 
  • DNA-damage signaling utilizes a multitude of posttranslational modifiers as molecular switches to regulate cell-cycle checkpoints, DNA repair, cellular senescence, and apoptosis. Here we show that RNF8, a FHA/RING domain-containing protein, plays a c ...

    DNA-damage signaling utilizes a multitude of posttranslational modifiers as molecular switches to regulate cell-cycle checkpoints, DNA repair, cellular senescence, and apoptosis. Here we show that RNF8, a FHA/RING domain-containing protein, plays a critical role in the early DNA-damage response. We have solved the X-ray crystal structure of the FHA domain structure at 1.35 A. We have shown that RNF8 facilitates the accumulation of checkpoint mediator proteins BRCA1 and 53BP1 to the damaged chromatin, on one hand through the phospho-dependent FHA domain-mediated binding of RNF8 to MDC1, on the other hand via its role in ubiquitylating H2AX and possibly other substrates at damage sites. Moreover, RNF8-depleted cells displayed a defective G2/M checkpoint and increased IR sensitivity. Together, our study implicates RNF8 as a novel DNA-damage-responsive protein that integrates protein phosphorylation and ubiquitylation signaling and plays a critical role in the cellular response to genotoxic stress.


    Organizational Affiliation

    Department of Therapeutic Radiology, Yale University School of Medicine, New Haven, CT 06520, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
E3 ubiquitin-protein ligase RNF8
A
138Homo sapiensMutation(s): 0 
Gene Names: RNF8 (KIAA0646)
EC: 2.3.2.27
Find proteins for O76064 (Homo sapiens)
Go to Gene View: RNF8
Go to UniProtKB:  O76064
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
phosphopeptide
F
7N/AMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
TPO
Query on TPO
F
L-PEPTIDE LINKINGC4 H10 N O6 PTHR
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.35 Å
  • R-Value Free: 0.198 
  • R-Value Work: 0.181 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 34.632α = 90.00
b = 76.865β = 90.00
c = 120.744γ = 90.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
PHASERphasing
HKL-2000data reduction
ADSCdata collection
REFMACrefinement
PDB_EXTRACTdata extraction
DENZOdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2007-12-11
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2017-10-18
    Type: Refinement description