TIR domain-containing adapter molecule 1 - Q80UF7 (TCAM1_MOUSE)


Protein Feature View of PDB entries mapped to a UniProtKB sequence  

Involved in innate immunity against invading pathogens. Adapter used by TLR3 and TLR4 (through TICAM2) to mediate NF-kappa-B and interferon-regulatory factor (IRF) activation, and to induce apoptosis. Ligand binding to these receptors results in TRIF recruitment through its TIR domain. Distinct protein-interaction motifs allow recruitment of the effector proteins TBK1, TRAF6 and RIPK1, which in turn, lead to the activation of transcription factors IRF3 and IRF7, NF-kappa-B and FADD respectively. Component of a multi-helicase-TICAM1 complex that acts as a cytoplasmic sensor of viral double-stranded RNA (dsRNA) and plays a role in the activation of a cascade of antiviral responses including the induction of proinflammatory cytokines (PubMed:21703541). UniProt
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Subunit Structure
Homodimer (By similarity). Found in a multi-helicase-TICAM1 complex at least composed of DHX36, DDX1, DDX21 and TICAM1; this complex exists in resting cells with or without poly(I:C) RNA ligand stimulation (PubMed:21703541). Interacts (via TIR domain) with DDX21 (via C-terminus) (PubMed:21703541). Interacts (via TIR domain) with DHX36 (via C-terminus) (PubMed:21703541). Interacts with AZI2, IRF3 and IRF7 (By similarity). Interacts with TICAM2 in TLR4 recruitment (By similarity). Interaction with PIAS4 inhibits the TICAM1-induced NF-kappa-B, IRF and IFNB1 activation (By similarity). Interacts with IKBKB and IKBKE (By similarity). Interaction with SARM1 blocks TICAM1-dependent transcription factor activation (By similarity). Interacts with TRAF3. Interacts with TRAFD1. Interacts with UBQLN1 (via UBA domain). Interacts with TBK1, TRAF6 and RIPK1 and these interactions are enhanced in the presence of WDFY1 (By similarity). Interacts (via the TIR domain) with TLR3 in response to poly(I:C) and this interaction is enhanced in the presence of WDFY1 (PubMed:25736436). Interacts with TLR4 in response to poly(I:C) in a WDFY1-dependent manner (PubMed:25736436). Interacts with WDFY1 in response to poly(I:C) (PubMed:25736436). Interacts with TRIM56. UniProt
The N-terminal domain (TRIF-NTD) is globular and consists of two alpha-helical subdomains connected by a 14-residue linker. It shares structural similarity with IFIT family members N-terminal regions. UniProt
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