1LB6

TRAF6-CD40 Complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.258 
  • R-Value Work: 0.203 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Distinct molecular mechanism for initiating TRAF6 signalling.

Ye, H.Arron, J.R.Lamothe, B.Cirilli, M.Kobayashi, T.Shevde, N.K.Segal, D.Dzivenu, O.K.Vologodskaia, M.Yim, M.Du, K.Singh, S.Pike, J.W.Darnay, B.G.Choi, Y.Wu, H.

(2002) Nature 418: 443-447

  • DOI: 10.1038/nature00888
  • Primary Citation of Related Structures:  1LB4, 1LB5

  • PubMed Abstract: 
  • Tumour-necrosis factor (TNF) receptor-associated factor 6 (TRAF6) is the only TRAF family member that participates in signal transduction of both the TNF receptor (TNFR) superfamily and the interleukin-1 receptor (IL-1R)/Toll-like receptor (TLR) supe ...

    Tumour-necrosis factor (TNF) receptor-associated factor 6 (TRAF6) is the only TRAF family member that participates in signal transduction of both the TNF receptor (TNFR) superfamily and the interleukin-1 receptor (IL-1R)/Toll-like receptor (TLR) superfamily; it is important for adaptive immunity, innate immunity and bone homeostasis. Here we report crystal structures of TRAF6, alone and in complex with TRAF6-binding peptides from CD40 and TRANCE-R (also known as RANK), members of the TNFR superfamily, to gain insight into the mechanism by which TRAF6 mediates several signalling cascades. A 40 degrees difference in the directions of the bound peptides in TRAF6 and TRAF2 shows that there are marked structural differences between receptor recognition by TRAF6 and other TRAFs. The structural determinant of the petide TRAF6 interaction reveals a Pro-X-Glu-X-X-(aromatic/acidic residue) TRAF6-binding motif, which is present not only in CD40 and TRANCE-R but also in the three IRAK adapter kinases for IL-1R/TLR signalling. Cell-permeable peptides with the TRAF6-binding motif inhibit TRAF6 signalling, which indicates their potential as therapeutic modulators. Our studies identify a universal mechanism by which TRAF6 regulates several signalling cascades in adaptive immunity, innate immunity and bone homeostasis.


    Organizational Affiliation

    Department of Biochemistry, Weill Medical College of Cornell University, New York, New York 10021, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
TNF receptor-associated factor 6
A
160Homo sapiensGene Names: TRAF6 (RNF85)
EC: 6.3.2.-
Find proteins for Q9Y4K3 (Homo sapiens)
Go to Gene View: TRAF6
Go to UniProtKB:  Q9Y4K3
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
CD40 antigen
B
9Homo sapiensGene Names: CD40 (TNFRSF5)
Find proteins for P25942 (Homo sapiens)
Go to Gene View: CD40
Go to UniProtKB:  P25942
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.258 
  • R-Value Work: 0.203 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 39.879α = 90.00
b = 43.815β = 90.00
c = 101.435γ = 90.00
Software Package:
Software NamePurpose
CNSrefinement
SCALEPACKdata scaling
DENZOdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2002-07-31
    Type: Initial release
  • Version 1.1: 2008-04-28
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2017-10-11
    Type: Refinement description