3OQ9

Structure of the FAS/FADD death domain assembly


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 6.8 Å
  • R-Value Free: 0.354 
  • R-Value Work: 0.343 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The Fas-FADD death domain complex structure reveals the basis of DISC assembly and disease mutations.

Wang, L.Yang, J.K.Kabaleeswaran, V.Rice, A.J.Cruz, A.C.Park, A.Y.Yin, Q.Damko, E.Jang, S.B.Raunser, S.Robinson, C.V.Siegel, R.M.Walz, T.Wu, H.

(2010) Nat.Struct.Mol.Biol. 17: 1324-1329

  • DOI: 10.1038/nsmb.1920

  • PubMed Abstract: 
  • The death-inducing signaling complex (DISC) formed by the death receptor Fas, the adaptor protein FADD and caspase-8 mediates the extrinsic apoptotic program. Mutations in Fas that disrupt the DISC cause autoimmune lymphoproliferative syndrome (ALPS) ...

    The death-inducing signaling complex (DISC) formed by the death receptor Fas, the adaptor protein FADD and caspase-8 mediates the extrinsic apoptotic program. Mutations in Fas that disrupt the DISC cause autoimmune lymphoproliferative syndrome (ALPS). Here we show that the Fas-FADD death domain (DD) complex forms an asymmetric oligomeric structure composed of 5-7 Fas DD and 5 FADD DD, whose interfaces harbor ALPS-associated mutations. Structure-based mutations disrupt the Fas-FADD interaction in vitro and in living cells; the severity of a mutation correlates with the number of occurrences of a particular interaction in the structure. The highly oligomeric structure explains the requirement for hexameric or membrane-bound FasL in Fas signaling. It also predicts strong dominant negative effects from Fas mutations, which are confirmed by signaling assays. The structure optimally positions the FADD death effector domain (DED) to interact with the caspase-8 DED for caspase recruitment and higher-order aggregation.


    Organizational Affiliation

    Department of Biochemistry, Weill Cornell Medical College, New York, New York, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Tumor necrosis factor receptor superfamily member 6
A, B, C, D, E
86Mus musculusMutation(s): 0 
Gene Names: Fas (Apt1, Tnfrsf6)
Find proteins for P25446 (Mus musculus)
Go to UniProtKB:  P25446
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Protein FADD
H, I, J, K, L
100Homo sapiensMutation(s): 0 
Gene Names: FADD (MORT1)
Find proteins for Q13158 (Homo sapiens)
Go to Gene View: FADD
Go to UniProtKB:  Q13158
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 6.8 Å
  • R-Value Free: 0.354 
  • R-Value Work: 0.343 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 135.204α = 90.00
b = 144.447β = 90.00
c = 131.574γ = 90.00
Software Package:
Software NamePurpose
PHASERphasing
PDB_EXTRACTdata extraction
ADSCdata collection
DENZOdata reduction
SCALEPACKdata scaling
HKL-2000data reduction
CNSrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-10-13
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2017-11-08
    Type: Refinement description