IFNLR1
Function
The IFNLR1/IL10RB dimer is a receptor for the cytokine ligands IFNL2 and IFNL3 and mediates their antiviral activity. The ligand/receptor complex stimulate the activation of the JAK/STAT signaling pathway leading to the expression of IFN-stimulated genes (ISG), which contribute to the antiviral state. Determines the cell type specificity of the lambda interferon action. Shows a more restricted pattern of expression in the epithelial tissues thereby limiting responses to lambda interferons primarily to epithelial cells of the respiratory, gastrointestinal, and reproductive tracts. Seems not to be essential for early virus-activated host defense in vaginal infection, but plays an important role in Toll-like receptor (TLR)-induced antiviral defense. Plays a significant role in the antiviral immune defense in the intestinal epithelium.
Post-translational modifications
Ubiquitinated by FBXO45-containing E3 ligase leading to proteasomal degradation.
Sequence Similarities
Belongs to the type II cytokine receptor family.
Tissue Specificity
Widely expressed.
Cellular localization
- Membrane
- Single-pass type I membrane protein
Alternative names
IL28RA, LICR2, IFNLR1, Interferon lambda receptor 1, IFN-lambda receptor 1, IFN-lambda-R1, Cytokine receptor class-II member 12, Cytokine receptor family 2 member 12, Interleukin-28 receptor subunit alpha, Likely interleukin or cytokine receptor 2, CRF2-12, IL-28 receptor subunit alpha, IL-28R-alpha, IL-28RA