1O77

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


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.20 Å
  • R-Value Free: 0.315 
  • R-Value Work: 0.249 
  • R-Value Observed: 0.249 

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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

  • DOI: 10.1016/s0006-291x(02)02581-0
  • Primary Citation of Related Structures:  
    1O77

  • 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 homot ...

    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:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
TOLL-LIKE RECEPTOR 2 ABCDE146Homo sapiensMutation(s): 1 
Gene Names: TLR2TIL4
EC: 3.2.2.6
Find proteins for O60603 (Homo sapiens)
Explore O60603 
Go to UniProtKB:  O60603
NIH Common Fund Data Resources
PHAROS:  O60603
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.20 Å
  • R-Value Free: 0.315 
  • R-Value Work: 0.249 
  • R-Value Observed: 0.249 
  • Space Group: P 65 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 112.3α = 90
b = 112.3β = 90
c = 362.8γ = 120
Software Package:
Software NamePurpose
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling
COMOphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

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