This study addresses the structural basis of TIR-domain-mediated signal transduction in Toll-like receptor 2 pathways. It is demonstrated that TLR2, but not TLR1 or TLR6, TIR domains induce the formation… Click to show full abstract
This study addresses the structural basis of TIR-domain-mediated signal transduction in Toll-like receptor 2 pathways. It is demonstrated that TLR2, but not TLR1 or TLR6, TIR domains induce the formation of MyD88 TIR-domain assemblies in vitro. The MicroED structure of TLR2-induced MyD88 TIR assemblies determined at 2.85 Å resolution highlights conformational changes that are crucial for signaling and provides evidence that TLR2 can directly interact with MyD88 to initiate TLR signaling.
               
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