2NA6

Transmembrane domain of mouse Fas/CD95 death receptor


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 75 
  • Conformers Submitted: 15 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Structural Basis and Functional Role of Intramembrane Trimerization of the Fas/CD95 Death Receptor.

Fu, Q.Fu, T.M.Cruz, A.C.Sengupta, P.Thomas, S.K.Wang, S.Siegel, R.M.Wu, H.Chou, J.J.

(2016) Mol Cell 61: 602-613

  • DOI: 10.1016/j.molcel.2016.01.009
  • Primary Citation of Related Structures:  
    2NA7, 2NA6

  • PubMed Abstract: 
  • Fas (CD95, Apo-1, or TNFRSF6) is a prototypical apoptosis-inducing death receptor in the tumor necrosis factor receptor (TNFR) superfamily. While the extracellular domains of TNFRs form trimeric complexes with their ligands and the intracellular domains ...

    Fas (CD95, Apo-1, or TNFRSF6) is a prototypical apoptosis-inducing death receptor in the tumor necrosis factor receptor (TNFR) superfamily. While the extracellular domains of TNFRs form trimeric complexes with their ligands and the intracellular domains engage in higher-order oligomerization, the role of the transmembrane (TM) domains is unknown. We determined the NMR structures of mouse and human Fas TM domains in bicelles that mimic lipid bilayers. Surprisingly, these domains use proline motifs to create optimal packing in homotrimer assembly distinct from classical trimeric coiled-coils in solution. Cancer-associated and structure-based mutations in Fas TM disrupt trimerization in vitro and reduce apoptosis induction in vivo, indicating the essential role of intramembrane trimerization in receptor activity. Our data suggest that the structures represent the signaling-active conformation of Fas TM, which appears to be different from the pre-ligand conformation. Analysis of other TNFR sequences suggests proline-containing sequences as common motifs for receptor TM trimerization.


    Organizational Affiliation

    Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02115, USA. Electronic address: chou@crystal.harvard.edu.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Tumor necrosis factor receptor superfamily member 6 ABC28Mus musculusMutation(s): 0 
Gene Names: FasApt1Tnfrsf6
Find proteins for P25446 (Mus musculus)
Explore P25446 
Go to UniProtKB:  P25446
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 75 
  • Conformers Submitted: 15 
  • Selection Criteria: structures with the lowest energy 
  • OLDERADO: 2NA6 Olderado

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2016-01-27
    Type: Initial release
  • Version 1.1: 2016-03-02
    Changes: Database references