Human IFN-alpha / beta  R1 Antibody

Recombinant Monoclonal Antibody
Catalog # Availability Size / Price Qty
Detection of Human IFN‑ alpha / beta  R1 by Western Blot.
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Product Details
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Human IFN-alpha / beta  R1 Antibody Summary

Species Reactivity
Detects human IFN‑ alpha / beta  R1 in direct ELISA.
Recombinant Monoclonal Rabbit IgG Clone # 2951C
Protein A or G purified from hybridoma culture supernatant
Mouse myeloma cell line, NS0-derived human IFN-alpha/beta R1
Accession # P17181
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.


Recommended Concentration
Western Blot
2 µg/mL
Daudi human Burkitt's lymphoma cell line and K562 human chronic myelogenous leukemia cell line
Flow Cytometry
0.10 µg/106 cells
U937 human histiocytic lymphoma cell line

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Scientific Data

Western Blot View Larger

Detection of Human IFN‑ alpha / beta  R1 by Western Blot. Western blot shows lysates of Daudi human Burkitt's lymphoma cell line and K562 human chronic myelogenous leukemia cell line. PVDF membrane was probed with 2 µg/mL of Rabbit Anti-Human IFN‑ alpha / beta  R1 Monoclonal Antibody (Catalog # MAB2452) followed by HRP-conjugated Anti-Rabbit IgG Secondary Antibody (Catalog # HAF008). A specific band was detected for IFN‑ alpha / beta  R1 at approximately 120 kDa (as indicated). This experiment was conducted under reducing conditions and using Western Blot Buffer Group 1.

Flow Cytometry View Larger

Detection of IFN‑ alpha / beta  R1 in U937 cells by Flow Cytometry. U937 cells were stained with Rabbit Anti-Human IFN‑ alpha / beta  R1 Monoclonal Antibody (Catalog # MAB2452, filled histogram) or isotype control antibody (Catalog # MAB1050, open histogram), followed by Allophycocyanin-conjugated Anti-Rabbit IgG Secondary Antibody (Catalog # F0111). View our protocol for Staining Membrane-associated Proteins.

Reconstitution Calculator

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.


Preparation and Storage

Reconstitute at 0.5 mg/mL in sterile PBS.
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: IFN-alpha/beta R1

Interferon‑alpha/beta receptor 1 (IFN‑ alpha / beta  R1), also known as IFNAR1, is a 100‑130 kDa member of the class II cytokine receptor family of proteins. These proteins form heterodimeric receptor complexes that mediate class II cytokine signals. Subunits of the different receptor complexes are shared and serve multiple functions (1). IFN‑ alpha / beta  R1, in association with IFN‑ alpha / beta  R2, is required for propagating anti‑microbial signal transduction triggered by the type 1 interferons such as IFN‑ alpha and IFN‑ beta (2, 3). Mature human IFN‑ alpha / beta  R1 consists of a 409 aa extracellular domain (ECD), a 21 aa transmembrane segment, and a 100 aa cytoplasmic domain (4). The ECD contains three tandem fibronectin type III repeats and is extensively glycosylated. Within the ECD, human IFN‑ alpha / beta  R1 shares 47% and 50% aa identity with mouse and rat  IFN‑ alpha / beta  R1, respectively. Alternative splicing generates two additional isoforms that lack the transmembrane segment and either all or a portion of the cytoplasmic domain. IFN‑ alpha / beta  R1 interacts very weakly or not at all with type 1 interferons and does not stably interact with IFN‑ alpha / beta  R2. Ligands preferentially associate with IFN‑ alpha / beta  R2, and this complex subsequently forms a stable ternary assembly with IFN‑ alpha / beta  R1 (5‑7). IFN‑ alpha / beta  R1 also associates with IFN‑ gamma  R2 even in the absence of IFN‑ gamma stimulation (3). IFN‑ alpha / beta  R1 activation depends on tyrosine phoshorylation as well as palmitoylation of its cytoplasmic domain (8, 9). Rapid down‑regulation of the receptor is accomplished by ligand‑dependent or ‑independent pathways (e.g. VEGF R signaling, TLR signaling, or cellular stress) which induce its serine phosphorylation, ubiquitination, and degradation (10‑13).

  1. Langer, J.A. et al. (2004) Cytokine Growth Factor Rev. 15:33.
  2. Hwang, S.Y. et al. (1995) Proc. Natl. Acad. Sci. USA 92:11284.
  3. Takaoka, A. et al. (2000) Science 288:2357.
  4. Uze, G. et al. (1990) Cell 60:225.
  5. Lamken, P. et al. (2004) J. Mol. Biol. 341:303.
  6. Arduini, R.M. et al. (1999) Prot. Sci. 8:1867.
  7. Kalie, E. et al. (2008) J. Biol. Chem. 283:32925.
  8. Platanias, L.C. (2005) Nat. Rev. Immunol. 5:375.
  9. Claudinon, J. et al. (2009) J. Biol. Chem. 284:24328.
  10. Zheng, H. et al. (2011) Blood 118:4003.
  11. Qian, J. et al. (2011) PLoS Pathogens 7:e1002065.
  12. Bhattacharya, S. et al. (2010) J. Biol. Chem. 285:2318.
  13. Bhattacharya, S. et al. (2011) J. Biol. Chem. 286:22069.
Long Name
Interferon alpha/beta Receptor 1
Entrez Gene IDs
3454 (Human); 15975 (Mouse); 101926190 (Cynomolgus Monkey)
Alternate Names
alpha-type antiviral protein; AVP; beta-type antiviral protein; CRF2-1; Cytokine receptor class-II member 1; Cytokine receptor family 2 member 1; human interferon-alpha receptor (HuIFN-alpha-Rec)10IFRC; IFN-alpha/beta R1; IFN-alpha/beta receptor 1; IFN-alpha-REC; IFNAR; IFNAR1; IFN-aR1; IFNBR; IFNbR1; IFN-bR1; IFN-R-1; interferon (alpha, beta and omega) receptor 1; interferon alpha/beta receptor 1; interferon-alpha/beta receptor alpha chain; interferon-beta receptor 1; Type I interferon receptor 1

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