4GHU

Crystal structure of TRAF3/Cardif


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.199 Å
  • R-Value Free: 0.224 
  • R-Value Work: 0.178 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Single Amino Acid Substitutions Confer the Antiviral Activity of the TRAF3 Adaptor Protein onto TRAF5

Zhang, P.Reichardt, A.Liang, H.Aliyari, R.Cheng, D.Wang, Y.Xu, F.Cheng, G.Liu, Y.

(2012) Sci.Signal. 5: ra81-ra81

  • DOI: 10.1126/scisignal.2003152
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The TRAF [tumor necrosis factor receptor-associated factor] family of cytoplasmic adaptor proteins link cell-surface receptors to intracellular signaling pathways that regulate innate and adaptive immune responses. In response to activation of RIG-I ...

    The TRAF [tumor necrosis factor receptor-associated factor] family of cytoplasmic adaptor proteins link cell-surface receptors to intracellular signaling pathways that regulate innate and adaptive immune responses. In response to activation of RIG-I (retinoic acid-inducible gene I), a component of a pattern recognition receptor that detects viruses, TRAF3 binds to the adaptor protein Cardif [caspase activation and recruitment domain (CARD) adaptor-inducing interferon-β (IFN-β)], leading to induction of type I IFNs. We report the crystal structures of the TRAF domain of TRAF5 and that of TRAF3 bound to a peptide from the TRAF-interacting motif of Cardif. By comparing these structures, we identified two residues located near the Cardif binding pocket in TRAF3 (Tyr(440) and Phe(473)) that potentially contributed to Cardif recognition. In vitro and cellular experiments showed that forms of TRAF5 with mutation of the corresponding residues to those of TRAF3 had TRAF3-like antiviral activity. Our results provide a structural basis for the critical role of TRAF3 in activating RIG-I-mediated IFN production.


    Organizational Affiliation

    State Key Laboratory of Biomacromolecules, CAS Key Laboratory of Infection and Immunity, Institute of Biophysics, Chinese Academy of Science, Beijing 100101, China.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
TNF receptor-associated factor 3
A
198Mus musculusMutation(s): 0 
Gene Names: Traf3 (Craf1, Trafamn)
EC: 2.3.2.27
Find proteins for Q60803 (Mus musculus)
Go to UniProtKB:  Q60803
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Mitochondrial antiviral-signaling protein
B
21Mus musculusMutation(s): 0 
Gene Names: Mavs (Ips1, Visa)
Find proteins for Q8VCF0 (Mus musculus)
Go to UniProtKB:  Q8VCF0
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.199 Å
  • R-Value Free: 0.224 
  • R-Value Work: 0.178 
  • Space Group: P 3 2 1
Unit Cell:
Length (Å)Angle (°)
a = 83.492α = 90.00
b = 83.492β = 90.00
c = 78.125γ = 120.00
Software Package:
Software NamePurpose
HKL-2000data collection
PHENIXrefinement
MLPHAREphasing
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2012-08-08 
  • Released Date: 2012-11-28 
  • Deposition Author(s): Zhang, P.

Revision History 

  • Version 1.0: 2012-11-28
    Type: Initial release