Download MendeleyCrystal structure of the Toll/interleukin-1 receptor (TIR) domain of IL-1R10 provides structural insights into TIR domain signalling.
Nimma, S., Gu, W., Manik, M.K., Ve, T., Nanson, J.D., Kobe, B.(2022) FEBS Lett 596: 886-897
- PubMed: 35038778
- DOI: https://doi.org/10.1002/1873-3468.14288
- Primary Citation of Related Structures:
7SZL - PubMed Abstract:
The Toll/interleukin-1 receptor (TIR) domains are key innate immune signalling modules. Here, we present the crystal structure of the TIR domain of human interleukin-1 receptor 10 (IL-1R10), also called interleukin 1 receptor accessory protein like 2. It is similar to that of IL-1R9 (IL-1RAPL1) but shows significant structural differences to those from Toll-like receptors (TLRs) and the adaptor proteins MyD88 adaptor-like protein (MAL) and MyD88. Interactions of TIR domains in their respective crystals and the higher-order assemblies (MAL and MyD88) reveal the presence of a common 'BCD surface', suggesting its functional significance. We also show that the TIR domains of IL-1R10 and IL-1R9 lack NADase activity, consistent with their structures. Our study provides a foundation for unravelling the functions of IL-1R9 and IL-1R10.
Organizational Affiliation:
School of Chemistry and Molecular Biosciences, Australian Infectious Diseases Research Centre and Institute of Molecular Bioscience, The University of Queensland, Brisbane, Australia.
