Death domain from human FADD/MORT1

Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 25 

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The Three-Dimensional Solution Structure and Dynamic Properties of the Human Fadd Death Domain

Berglund, H.Olerenshaw, D.Sankar, A.Federwisch, M.Mcdonald, N.Q.Driscoll, P.C.

(2000) J Mol Biol 302: 171

  • DOI: https://doi.org/10.1006/jmbi.2000.4011
  • Primary Citation of Related Structures:  
    1E3Y, 1E41

  • PubMed Abstract: 

    FADD (also known as MORT-1) is an essential adapter protein that couples the transmembrane receptors Fas (CD95) and tumor necrosis factor receptor-1 (TNF-R1) to intracellular cysteine proteases known as caspases, which propagate and execute the programmed cell death-inducing signal triggered by Fas ligand (FasL, CD95L) and TNF. FADD contains 208 amino acid residues, and comprises two functionally and structurally distinct domains: an N-terminal death effector domain (DED) that promotes activation of the downstream proteolytic cascade through binding of the DED domains of procaspase-8; and a C-terminal death domain (DD). FADD-DD provides the site of FADD recruitment to death receptor complexes at the plasma membrane by, for example, interaction with the Fas receptor cytoplasmic death domain (Fas-DD), or binding of the TNF-R1 adapter molecule TRADD. We have determined the three-dimensional solution structure and characterised the internal polypeptide dynamics of human FADD-DD using heteronuclear NMR spectroscopy of (15)N and (13)C,(15)N-labelled samples. The structure comprises six alpha-helices joined by short loops and displays overall similarity to the death domain of the Fas receptor. The analysis of the dynamic properties reveals no evidence of contiguous stretches of polypeptide chain with increased internal motion, except at the extreme chain termini. A pattern of increased rates of amide proton solvent exchange in the alpha3 helix correlates with a higher degree of solvent exposure for this secondary structure element. The properties of the FADD-DD structure are discussed with respect to previously reported mutagenesis data and emerging models for FasL-induced FADD recruitment to Fas and caspase-8 activation.

  • Organizational Affiliation

    Department of Biochemistry and Molecular Biology, University College London, Gower Street, London, WC1E 6BT, UK.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
FADD PROTEIN104Homo sapiensMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for Q13158 (Homo sapiens)
Explore Q13158 
Go to UniProtKB:  Q13158
PHAROS:  Q13158
GTEx:  ENSG00000168040 
Entity Groups  
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UniProt GroupQ13158
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 25 

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2000-11-06
    Type: Initial release
  • Version 1.1: 2011-05-08
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance