Human IFN-gamma Antibody

Catalog # Availability Size / Price Qty
AB-285-NA
Human IFN-gamma  Antibody in Data
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Product Details
Citations (1)
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Human IFN-gamma Antibody Summary

Species Reactivity
Human
Specificity
Detects human IFN-gamma in direct ELISAs and Western blots. In direct ELISAs and Western blots, approximately 50% cross-reactivity with recombinant rhesus monkey IFN‑ gamma is observed, and less than 5% cross-reactivity with recombinant mouse IFN‑ gamma, recombinant canine IFN‑ gamma, recombinant porcine IFN‑ gamma, recombinant bovine IFN‑ gamma, recombinant rat IFN‑ gamma, recombinant feline IFN‑ gamma, and recombinant equine IFN‑ gamma  is observed.
Source
Polyclonal Goat IgG
Purification
Protein A or G purified
Immunogen
E. coli-derived recombinant human IFN-gamma
Met1-Gln144
Accession # Q14609
Formulation
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose.
Endotoxin Level
<0.10 EU per 1 μg of the antibody by the LAL method.
Label
Unconjugated

Applications

Recommended Concentration
Sample
Western Blot
1 µg/mL
Recombinant Human IFN-gamma (Catalog # 285-IF)
Neutralization
Measured by its ability to neutralize IFN‑ gamma inhibition of EMCV-induced cytopathy in the HeLa human cervical epithelial carcinoma cell line [Meager, A. (1987) in Lymphokines and Interferons, a Practical Approach. Clemens, M.J. et al. (eds): IRL Press. 129]. The Neutralization Dose (ND50) is typically 1-5 µg/mL in the presence of 5 ng/mL Recombinant Human IFN‑ gamma.

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.

Data Example

Neutralization IFN‑ gamma  Inhibition of EMCV-induced Cytopathy and Neutralization by Human IFN‑ gamma  Antibody. View Larger

IFN‑ gamma Inhibition of EMCV-induced Cytopathy and Neutralization by Human IFN‑ gamma Antibody. Recombinant Human IFN-gamma (285-IF) reduces the Encephalomyocarditis Virus (EMCV)-induced cytopathy in the HeLa human cervical epithelial carcinoma cell line in a dose-dependent manner (orange line), as measured by crystal violet staining. Inhibition of EMCV activity elicited by Recombinant Human IFN-gamma (5 ng/mL) is neutralized (green line) by increasing concentrations of Goat Anti-Human IFN-gamma Poly-clonal Antibody (Catalog # AB-285-NA). The ND50 is typically 1‑5 µg/mL.

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.

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Preparation and Storage

Reconstitution
Reconstitute at 1 mg/mL in sterile PBS.
Reconstitution Buffer Available
Reconstitution Buffer 1 (PBS)
Catalog #
Availability
Size / Price
Qty
RB01
Shipping
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
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-gamma

Interferon-gamma (IFN-gamma, IFNG), also known as type II or Immune Interferon, exerts a wide range of immunoregulatory activities and is considered to be the prototype proinflammatory cytokine. Mature human IFN-gamma exists as a non-covalently linked homodimer of 20-25 kDa molecular weight variably glycosylated subunits. Glycosylation of IFN-gamma at sites Asn25 and Asn97 is critical for protease resistance. 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. IFN-gamma is produced by a variety of immune cells under inflammatory conditions, notably by T cells and NK cells. It plays a key function 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. In addition, IFN-gamma functions as an anti-inflammatory mediator by promoting the development of regulatory T cells and inhibiting Th17 cell differentiation. The pleiotropic effects of IFN-gamma contribute to the development of multiple aspects of atherosclerosis.

Long Name
Interferon gamma
Entrez Gene IDs
3458 (Human); 15978 (Mouse); 25712 (Rat); 396991 (Porcine); 281237 (Bovine); 403801 (Canine); 493965 (Feline)
Alternate Names
IFG; IFI; IFNG; IFNgamma; IFN-gamma; Immune interferon; interferon gamma; interferon, gamma

Product Datasheets

Citation for Human IFN-gamma Antibody

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

1 Citation: Showing 1 - 1

  1. Tumor-activated TCRgammadelta(+) T cells from gastric cancer patients induce the antitumor immune response of TCRalphabeta(+) T cells via their antigen-presenting cell-like effects.
    Authors: Mao C, Mou X, Zhou Y, Yuan G, Xu C, Liu H, Zheng T, Tong J, Wang S, Chen D
    J Immunol Res, 2014;2014(0):593562.
    Species: Human
    Sample Types: Whole Cells
    Applications: Functional Assay

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