Recombinant Human IFN-gamma Protein, CF


1 μg/lane of Recombinant Human IFN-gamma was resolved with SDS-PAGE under reducing (R) conditions and visualized by silver staining, showing a single band at 17 kDa.
Recombinant Human IFN-gamma (Catalog # 285‑IF/CF) demonstrates anti-viral activity in HeLa human cervical epithelial carcinoma cells infected with encephalomyocarditis (EMC) virus. The ED50 for this effect is more

Product Details

Reactivity HuSpecies Glossary
Applications BA

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Recombinant Human IFN-gamma Protein, CF Summary

Details of Functionality
Measured in anti-viral assays using HeLa human cervical epithelial carcinoma cells infected with encephalomyocarditis (EMC) virus. Meager, A. (1987) in Lymphokines and Interferons, a Practical Approach. Clemens, M.J. et al. (eds): IRL Press. 129. The ED50 for this effect is 0.15-0.75 ng/mL.
The specific activity of Recombinant Human IFN-gamma is approximately 2 x 104 IU/μg, which is calibrated against human IFN-gamma Standard (NIBSC code: 87/586).
E. coli-derived
Gln24-Gln166 with an N-terminal Met
Accession #
N-terminal Sequence
Protein/Peptide Type
Recombinant Proteins
>97%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.
Endotoxin Note
<0.01 EU per 1 μg of the protein by the LAL method.


Theoretical MW
16.9 kDa.
Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.
17 kDa, reducing conditions
Read Publications using
285-IF/CF in the following applications:

Packaging, Storage & Formulations

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.
  • 3 months, -20 to -70 °C under sterile conditions after reconstitution.
Lyophilized from a 0.2 μm filtered solution in Sodium Succinate, Mannitol and Tween® 80.
>97%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.
Reconstitution Instructions
Reconstitute at 0.2 mg/mL in sterile, deionized water. 


This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for Recombinant Human IFN-gamma Protein, CF

  • IFG
  • IFI
  • IFNG
  • IFNgamma
  • IFN-gamma
  • Immune interferon
  • interferon gamma
  • interferon, gamma


Interferon-gamma (IFN-gamma ), also known as type II or immune interferon, exerts a wide range of immunoregulatory activities and is considered to be the prototype proinflammatory cytokine (1, 2). Mature human IFN-gamma exists as a non-covalently linked homodimer of 20-25 kDa variably glycosylated subunits (3). It shares 90% amino acid (aa) sequence identity with rhesus IFN-gamma, 59%‑64% with bovine, canine, equine, feline, and porcine IFN‑ gamma, and 37%‑43% with cotton rat, mouse, and rat IFN-gamma. IFN-gamma dimers bind to IFN-gamma RI ( alpha subunits) which then interact with IFN-gamma RII ( beta  subunits) to form the functional receptor complex of two alpha and two beta  subunits. Inclusion of IFN-gamma RII increases the binding affinity for ligand and the efficiency of signal transduction (4, 5). IFN-gamma is produced by a variety of immune cells under inflammatory conditions, notably by T cells and NK cells (6). It plays a key role in host defense by promoting the development and activation of Th1 cells, chemoattraction and activation of monocytes and macrophages, up‑regulation of antigen presentation molecules, and immunoglobulin class switching in B cells. It also exhibits antiviral, antiproliferative, and apoptotic effects (6, 7). In addition, IFN-gamma functions as an anti-inflammatory mediator by promoting the development of regulatory T cells and inhibiting Th17 cell differentiation (8, 9). The pleiotropic effects of IFN-gamma contribute to the development of multiple aspects of atherosclerosis (7).

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Publications for (219)

We have publications tested in 6 confirmed species: Human, Mouse, Rat, Hamster, N/A, Primate - Macaca fascicularis (Crab-eating Monkey or Cynomolgus Macaque).

We have publications tested in 7 applications: Binding Assay, Bioassay, ELISA Standard, In Vivo, WB Ctrl, c, cell culture.

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Primate - Macaca fascicularis (Crab-eating Monkey or Cynomolgus Macaque)
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Showing Publications 1 - 10 of 219. Show All 219 Publications.
Publications using 285-IF/CF Applications Species
F Liu, Q Niu, X Fan, C Liu, J Zhang, Z Wei, W Hou, TD Kanneganti, ML Robb, JH Kim, NL Michael, J Sun, L Soong, H Hu Priming and Activation of Inflammasome by Canarypox Virus Vector ALVAC via the cGAS/IFI16-STING-Type I IFN Pathway and AIM2 Sensor J. Immunol., 2017;0(0):. 2017 [PMID: 28947539] (Bioassay, Human) Bioassay Human
Y Qin, M Li, SL Zhou, W Yin, Z Bian, HB Shu SPI-2/CrmA inhibits IFN-? induction by targeting TBK1/IKK? Sci Rep, 2017;7(1):10495. 2017 [PMID: 28874755] (Bioassay, Human) Bioassay Human
N Starc, D Ingo, A Conforti, V Rossella, L Tomao, A Pitisci, F De Mattia, I Brigida, M Algeri, M Montanari, G Palumbo, P Merli, P Rossi, A Aiuti, F Locatelli, ME Bernardo Biological and functional characterization of bone marrow-derived mesenchymal stromal cells from patients affected by primary immunodeficiency Sci Rep, 2017;7(1):8153. 2017 [PMID: 28811575] (Bioassay, Human) Bioassay Human
MW Tang, S Garcia, B Malvar Fer, DM Gerlag, PP Tak, KA Reedquist Rheumatoid arthritis and psoriatic arthritis synovial fluid stimulates prolactin production by macrophages J. Leukoc. Biol., 2017;0(0):. 2017 [PMID: 28642278] (Bioassay, Human) Bioassay Human
HM Rostam, PM Reynolds, MR Alexander, N Gadegaard, AM Ghaemmagha Image based Machine Learning for identification of macrophage subsets Sci Rep, 2017;7(1):3521. 2017 [PMID: 28615717] (Bioassay, Human) Bioassay Human
A Pavesi, AT Tan, S Koh, A Chia, M Colombo, E Antonecchi, C Miccolis, E Ceccarello, G Adriani, MT Raimondi, RD Kamm, A Bertoletti A 3D microfluidic model for preclinical evaluation of TCR-engineered T cells against solid tumors JCI Insight, 2017;2(12):. 2017 [PMID: 28614795] (Bioassay, Human) Bioassay Human
Q Wu, A Allouch, A Paoletti, C Leteur, C Mirjolet, I Martins, L Voisin, F Law, H Dakhli, E Mintet, M Thoreau, Z Muradova, M Gauthier, O Caron, F Milliat, DM Ojcius, F Rosselli, E Solary, N Modjtahedi, E Deutsch, JL Perfettini NOX2-dependent ATM kinase activation dictates pro-inflammatory macrophage phenotype and improves effectiveness to radiation therapy Cell Death Differ., 2017;0(0):. 2017 [PMID: 28574504] (Bioassay, Human) Bioassay Human
JY Ao, XD Zhu, ZT Chai, H Cai, YY Zhang, KZ Zhang, LQ Kong, N Zhang, BG Ye, DN Ma, HC Sun Colony-stimulating factor 1 receptor blockade inhibits tumor growth by altering the polarization of tumor-associated macrophages in hepatocellular carcinoma Mol. Cancer Ther., 2017;0(0):. 2017 [PMID: 28572167] (Bioassay, Human) Bioassay Human
N Hakimzadeh, J Elias, GWM Wijntjens, R Theunissen, A van Weert, MW Smulders, N van den Ak, PD Moerland, HJ Verberne, LP Hoebers, JPS Henriques, AM van der La, M Ilhan, M Post, SCAM Bekkers, JJ Piek Monocytic microRNA profile associated with coronary collateral artery function in chronic total occlusion patients Sci Rep, 2017;7(1):1532. 2017 [PMID: 28484274] (Bioassay, Human) Bioassay Human
Y Arai, D Takahashi, K Asano, M Tanaka, M Oda, SBH Ko, MSH Ko, S Mandai, N Nomura, T Rai, S Uchida, E Sohara Salt suppresses IFN? inducible chemokines through the IFN?-JAK1-STAT1 signaling pathway in proximal tubular cells Sci Rep, 2017;7(0):46580. 2017 [PMID: 28425456] (Bioassay, Human) Bioassay Human
Show All 219 Publications.

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Gene Symbol IFNG