Interferon Alpha/Beta Receptor 1 (Ifna/Br1) (IFNa/bR1) Antibody – Mouse Monoclonal

The protein encoded by this gene is a type I membrane protein that forms one of the two chains of a receptor for interferons alpha and beta. Binding and activation of the receptor stimulates Janus protein kinases, which in turn phosphorylate several proteins, including STAT1 and STAT2. The encoded protein also functions as an antiviral factor. [provided by RefSeq, Jul 2008]

IFNAR1: receptor for interferons alpha and beta. Belongs to the type II cytokine family of receptors. Binding to type I IFNs triggers tyrosine phosphorylation of a number of proteins including JAKs, TYK2, STAT proteins and IFNR alpha- and beta-subunits themselves. Tyk2 tyrosine kinase is essential for stable cell surface expression of IFNAR1. Present in all tissues and even on the surface of most IFN-resistant cells.

Protein type: Receptor, cytokine; Membrane protein, integral

Chromosomal Location of Human Ortholog: 21q22.11

Cellular Component: integral to plasma membrane; integral to membrane; plasma membrane

Molecular Function: protein binding; interferon receptor activity; interferon-alpha/beta receptor activity

Biological Process: positive regulation of interferon-gamma production; cell surface receptor linked signal transduction; T cell activation; response to virus; cytokine and chemokine mediated signaling pathway; positive regulation of interleukin-1 beta secretion; JAK-STAT cascade; interferon type I biosynthetic process; defense response to virus