Identifiers
NAME:IFNAR1:IFNAR2
Maps_Modules
HMC:AVOIDING_IMMUNE_DESTRUCTION
Innate Immunity / IMMUNOSTIMULATORY_CYTOKINE_PATHWAYS
References
NATURAL_KILLER
DENDRITIC_CELL
CASCADE:IFNAB
PMID:15864272
I IFN receptor has a multichain structures, which are composed of at least two distinct subunits: IFNAR1 and IFNAR2.
IFNAR1 subunit is constitutively associated with tyrosine kinase 2 (TYK2), whereas IFNAR2 is associated with JAK1.
The initial step in both type-I- and type-II-IFN-mediated signalling is the activation of these receptor-associated JAKs
, which occurs in response to a ligand-dependent rearrangement and dimerization of the receptor subunits, followed by autophosphorylation and activation of the associated JAKs
which in turn regulate the phosphorylation and activation of STATs.