IFNAR1, Human (HEK293, His)

IFNAR1, one of the subunit of IFN-α/β receptor, is a type I IFN receptor. IFNAR1 forms the heterodimeric receptor with IFNAR2. IFNAR1 mediates IFN-induced STAT signaling by interacting with tyrosine kinase 2 (Tyk2)[1][2]. Upon activation by these IFNs, IFNAR1 and IFNAR2 undergo a conformational change to promote a cascade of downstream signaling events, including the phosphorylation of Tyk2 and JAK1, STAT1 and STAT2[3]. IFNAR1 Protein, Human (HEK293, His) is a recombinant human IFNAR1 (K28-K436) with C-terminal 6*His tag, which is produced in HEK293 cells.

KNLKSPQKVE VDIIDDNFIL RWNRSDESVG NVTFSFDYQK TGMDNWIKLS GCQNITSTKC NFSSLKLNVY EEIKLRIRAE KENTSSWYEV DSFTPFRKAQ IGPPEVHLEA EDKAIVIHIS PGTKDSVMWA LDGLSFTYSL VIWKNSSGVE ERIENIYSRH KIYKLSPETT YCLKVKAALL TSWKIGVYSP VHCIKTTVEN ELPPPENIEV SVQNQNYVLK WDYTYANMTF QVQWLHAFLK RNPGNHLYKW KQIPDCENVK TTQCVFPQNV FQKGIYLLRV QASDGNNTSF WSEEIKFDTE IQAFLLPPVF NIRSLSDSFH IYIGAPKQSG NTPVIQDYPL IYEIIFWENT SNAERKIIEK KTDVTVPNLK PLTVYCVKAR AHTMDEKLNK SSVFSDAVCE KTKPGNTSK

[1]Zanin N, et al. Interferon Receptor Trafficking and Signaling: Journey to the Cross Roads. Front Immunol. 2021 Jan 20;11:615603.|[2]Shemesh M, et al. IFNAR1 and IFNAR2 play distinct roles in initiating type I interferon-induced JAK-STAT signaling and activating STATs. Sci Signal. 2021 Nov 23;14(710):eabe4627.|[3]Jun Zou, et al. Chapter 7 - Antiviral Immunity: Origin and Evolution in Vertebrates. The Evolution of the Immune System. 2016,Pages 173-204.|[4]Pogue SL, et al. The receptor for type I IFNs is highly expressed on peripheral blood B cells and monocytes and mediates a distinct profile of differentiation and activation of these cells. J Interferon Cytokine Res. 2004 Feb;24(2):131-9.