Crystal structure of TIR domain of TLR6

Experimental Data Snapshot

  • Resolution: 2.20 Å
  • R-Value Free: 0.285 
  • R-Value Work: 0.233 
  • R-Value Observed: 0.236 

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Crystal Structure of TIR Domain of TLR6 Reveals Novel Dimeric Interface of TIR-TIR Interaction for Toll-Like Receptor Signaling Pathway.

Jang, T.H.Park, H.H.

(2014) J Mol Biol 426: 3305-3313

  • DOI: https://doi.org/10.1016/j.jmb.2014.07.024
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    Toll-like receptors (TLRs) are responsible for recognition of particular pathogens during the innate immune response and cytoplasmic Toll/interleukin-1 receptor (TIR) domain responsible for downstream signaling. TLR6 working with TLR2 can detect bacterial lipoprotein leading signal for nuclear factor-kappaB activation for immune response. To better understand TLR-mediated signaling event in the innate immune system, in this study, we report the first crystal structure of the TIR domain of TLR6 at 2.2Å resolution. Our structure reveals novel homo-dimerization interfaces, which might be a critical for the interaction with TIR-containing adaptor proteins and itself. We also report structural similarities and differences of TLR6 with those of other TIR domains, which may be functionally relevant.

  • Organizational Affiliation

    School of Biotechnology and Graduate School of Biochemistry, Yeungnam University, 280, Daehak-ro, Gyeongsan-si, Gyeongsangbuk-do 712-749, South Korea.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Toll-like receptor 6
A, B
179Homo sapiensMutation(s): 0 
Gene Names: TLR6
UniProt & NIH Common Fund Data Resources
Find proteins for Q9Y2C9 (Homo sapiens)
Explore Q9Y2C9 
Go to UniProtKB:  Q9Y2C9
GTEx:  ENSG00000174130 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9Y2C9
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 2.20 Å
  • R-Value Free: 0.285 
  • R-Value Work: 0.233 
  • R-Value Observed: 0.236 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 127.607α = 90
b = 44.199β = 118.9
c = 75.723γ = 90
Software Package:
Software NamePurpose
HKL-2000data collection
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2014-08-06
    Type: Initial release
  • Version 1.1: 2014-09-24
    Changes: Database references
  • Version 1.2: 2018-01-24
    Changes: Structure summary