1O77

CRYSTAL STRUCTURE OF THE C713S MUTANT OF THE TIR DOMAIN OF HUMAN TLR2


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.2 Å
  • R-Value Free: 0.315 
  • R-Value Work: 0.249 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

An Extensively Associated Dimer in the Structure of the C713S Mutant of the Tir Domain of Human Tlr2

Tao, X.Xu, Y.Zheng, Y.Beg, A.A.Tong, L.

(2002) Biochem.Biophys.Res.Commun. 299: 216


  • PubMed Abstract: 
  • The Toll/interleukin-1 receptor (TIR) domains are conserved modules in the intracellular regions of the Toll-like receptors (TLRs) and interleukin-1 receptors (IL-1Rs). The domains are crucial for the signal transduction by these receptors, through h ...

    The Toll/interleukin-1 receptor (TIR) domains are conserved modules in the intracellular regions of the Toll-like receptors (TLRs) and interleukin-1 receptors (IL-1Rs). The domains are crucial for the signal transduction by these receptors, through homotypic interactions among the receptor and the downstream adapter TIR domains. Previous studies showed that the BB loop in the structure of the TIR domain forms a prominent conserved feature on the surface and is important for receptor signaling. Here we report the crystal structure of the C713S mutant of the TIR domain of human TLR2. An extensively associated dimer is observed in the crystal structure and mutations of several residues in this dimer interface abolished the function of the receptor. Moreover, the structure shows that the BB loop can adopt different conformations, which are required for the formation of this dimer. This asymmetric dimer might represent the TLR2:TLRx heterodimer in the function of this receptor.


    Organizational Affiliation

    Department of Biological Sciences, Columbia University, 10027, New York, NY, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
TOLL-LIKE RECEPTOR 2
A, B, C, D, E
146Homo sapiensMutation(s): 1 
Gene Names: TLR2 (TIL4)
Find proteins for O60603 (Homo sapiens)
Go to Gene View: TLR2
Go to UniProtKB:  O60603
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.2 Å
  • R-Value Free: 0.315 
  • R-Value Work: 0.249 
  • Space Group: P 65 2 2
Unit Cell:
Length (Å)Angle (°)
a = 112.300α = 90.00
b = 112.300β = 90.00
c = 362.800γ = 120.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
COMOphasing
CNSrefinement
DENZOdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2002-11-21
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance