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Mouse Monoclonal to IFN-gamma

NIB42 (IgG1)

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The Interferon gamma (IFN-gamma; 16-25 kDa) is an important regulator of the immune response, produced in activated Th1 cells and NK cells, particularly in response to IL-2, TNF-alpha and IL-12; its production is suppressed by IL-4, IL-10, and TGF-beta. The producing of IFN-gamma is activated by specific antigens or mitogens through the T cell antigen receptor. IFN-gamma polypeptide forms: 40-60 kDa forms are observable under non-denaturing conditions as dimers and trimers; 20 kDa and 25 kDa forms exist due to variable glycosylation. IFN-gamma belongs to the type II interferons, also called immune IFN.
IFN-gamma shows antiviral activity and has important immunoregulatory functions. It is a potent activator of macrophages and had antiproliferative effects on transformed cells. IFN-gamma plays an important role in regulating B cell differentiation by simultaneously stimulating class switch recombination to the IgG3 and IgG2a isotypes while represing class switch recombination to the IgE and IgG1 isotypes. It also appears to promote antigen presentation by B cells through its effects on MHC. Binding of IFN-gamma to its receptor increases the expression of class I MHC on all somatic cells. It also enhances the expression of class II MHC on antigen-presenting cells. IFN-gamma is the major means by which T cells activate macrophages, increasing their ability to kill bacteria, parasites, and tumours. The activation of macrophages by IFN-gamma is essential for the elimination of bacteria that replicate within the phagosomes of macrophages (f.e. Mycobacteria and Listeria monocytogenes). IFN-gamma can potentiate the high antiviral and antitumor effects of the type I interferons (IFN-alpha, IFN-beta). IFN-gamma may also activate neutrophils and NK cells.


The mouse monoclonal antibody NIB42 recognizes IFN-gamma, a 16-25 kDa cytokine produced by activated Th1 cells and NK cells. Binds both glycosylated and non-glycosylated protein.

Regulatory Status


Recombinant human interferon gamma

Species Reactivity:

  • Human

Negative Species:


  • Immunoprecipitation
    capture antibody in combination with detection antibody 4S.B3
  • RIA
  • Functional Application
Usage note:
Indicated dilutions are recommended starting points for use of this product. Working concentrations should be determined by the investigator.

Product Specific References

  • *Brattig NW, Lepping B, Timmann C, Büttner DW, Marfo Y, Hamelmann C, Horstmann RD: Onchocerca volvulus-exposed persons fail to produce interferon-gamma in response to O. volvulus antigen but mount proliferative responses with interleukin-5 and IL-13 production that decrease with increasing microfilarial density. J Infect Dis. 2002 Apr 15;185(8):1148-54. [Abstract] [Full Text]
  • *Black GF, Weir RE, Chaguluka SD, Warndorff D, Crampin AC, Mwaungulu L, Sichali L, Floyd S, Bliss L, Jarman E, Donovan L, Andersen P, Britton W, Hewinson G, Huygen K, Paulsen J, Singh M, Prestidge R, Fine PE, Dockrell HM: Gamma interferon responses induced by a panel of recombinant and purified mycobacterial antigens in healthy, non-mycobacterium bovis BCG-vaccinated Malawian young adults. Clin Diagn Lab Immunol. 2003 Jul;10(4):602-11. [Abstract] [Full Text]
  • *Joseph S, Jones FM, Kimani G, Mwatha JK, Kamau T, Kazibwe F, Kemijumbi J, Kabatereine NB, Booth M, Kariuki HC, Ouma JH, Vennervald BJ, Dunne DW: Cytokine production in whole blood cultures from a fishing community in an area of high endemicity for Schistosoma mansoni in Uganda: the differential effect of parasite worm and egg antigens. Infect Immun. 2004 Feb;72(2):728-34. [Abstract] [Full Text]
  • *Herwig Peter Moll, Harald Freudenthaler, Anna Zommer, Elisabeth Buchberger, Christine Brostjan: Neutralizing Type I Interferon Antibodies trigger an Interferon-Like Response in Endothelial Cells. J Immunol. 2008 April 15; 180(8): 5250–5256. [Abstract]
  • *D'Ombrain MC, Robinson LJ, Stanisic DI, Taraika J, Bernard N, Michon P, Mueller I, Schofield L: Association of early interferon-gamma production with immunity to clinical malaria: a longitudinal study among Papua New Guinean children. Clin Infect Dis. 2008 Dec 1;47(11):1380-7. [Abstract] [Full Text]
  • *Veltkamp M, Van Moorsel CH, Rijkers GT, Ruven HJ, Van Den Bosch JM, Grutters JC: Toll-like receptor (TLR)-9 genetics and function in sarcoidosis. Clin Exp Immunol. 2010 Oct;162(1):68-74. [Abstract] [Full Text]
  • *Kofler DM, Chmielewski M, Rappl G, Hombach A, Riet T, Schmidt A, Hombach AA, Wendtner CM, Abken H: CD28 costimulation Impairs the efficacy of a redirected t-cell antitumor attack in the presence of regulatory t cells which can be overcome by preventing Lck activation. Mol Ther. 2011 Apr;19(4):760-7. [Abstract] [Full Text]
  • For research use only. Not for drug, diagnostic or other use.

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