The TIR domain of human Toll-Like Receptor 10 (TLR10)

Experimental Data Snapshot

  • Resolution: 2.20 Å
  • R-Value Free: 0.266 
  • R-Value Work: 0.214 
  • R-Value Observed: 0.216 

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This is version 1.2 of the entry. See complete history


The Crystal Structure of the Human Toll-Like Receptor 10 Cytoplasmic Domain Reveals a Putative Signaling Dimer.

Nyman, T.Stenmark, P.Flodin, S.Johansson, I.Hammarstrom, M.Nordlund, P.

(2008) J Biol Chem 283: 11861

  • DOI: https://doi.org/10.1074/jbc.C800001200
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    The Toll/interleukin-1 receptor (TIR) domain is a highly conserved signaling domain found in the intracellular regions of Toll-like receptors (TLRs), in interleukin-1 receptors, and in several cytoplasmic adaptor proteins. TIR domains mediate receptor signal transduction through recruitment of adaptor proteins and play critical roles in the innate immune response and inflammation. This work presents the 2.2A crystal structure of the TIR domain of human TLR10, revealing a symmetric dimer in the asymmetric unit. The dimer interaction surface contains residues from the BB-loop, DD-loop, and alphaC-helix, which have previously been identified as important structural motifs for signaling in homologous TLR receptors. The interaction surface is extensive, containing a central hydrophobic patch surrounded by polar residues. The BB-loop forms a tight interaction, where a range of consecutive residues binds in a pocket formed by the reciprocal BB-loop and alphaC-helix. This pocket appears to be well suited for binding peptide substrates, which is consistent with the notion that peptides and peptide mimetics of the BB-loop are inhibitors for TLR signaling. The TLR10 structure is in good agreement with available biochemical data on TLR receptors and is likely to provide a good model for the physiological dimer.

  • Organizational Affiliation

    Structural Genomics Consortium, Karolinska Institute, Stockholm, Sweden.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
A, B
178Homo sapiensMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for Q9BXR5 (Homo sapiens)
Explore Q9BXR5 
Go to UniProtKB:  Q9BXR5
GTEx:  ENSG00000174123 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9BXR5
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 2.20 Å
  • R-Value Free: 0.266 
  • R-Value Work: 0.214 
  • R-Value Observed: 0.216 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 66.2α = 90
b = 43.3β = 101
c = 71.3γ = 90
Software Package:
Software NamePurpose
XDSdata reduction
XSCALEdata scaling

Structure Validation

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Entry History 

Revision History  (Full details and data files)

  • Version 1.0: 2006-09-27
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Advisory, Version format compliance
  • Version 1.2: 2023-12-13
    Changes: Data collection, Database references, Other, Refinement description