Miltenyi, 130-096-872, Human IFN-γ1b, research grade

Biological activity

Background information
IFN-γ, the only type II interferon, possesses potent anti-viral activity and immunoregulatory properties. It is structurally unrelated to the type I interferons and binds to a different receptor expressed by most immune cells. IFN-γ is produced predominantly by NK cells and T cells. IFN-γ enhances NK cell and macrophage activity and regulates B cell functions, like immunglobulin production and class switching. In addition, IFN-γ orchestrates leukocyte attraction and directs growth, maturation, and differentiation of many cell types. The activity of human IFN-γ is species-specific.

Quality description
Research-grade cytokines are suitable for a wide variety of cell culture applications. They are sterile-filtered prior to lyophilization. Generally, endotoxin levels are <0.1 ng/μg (<1 EU/μg), and purities are >95%. The biological activity is tested in appropriate bioassays.
Premium-grade cytokines offer the convenience of high and well-defined biological activities and allow exact unit dosing for demanding applications. The biological activity is determined after lyophilization and reconstitution, and normalized to WHO/NIBSC standards whenever available. In general, endotoxin levels are <0.01 ng/μg (<0.1 EU/μg), and purities are >97%. Lot-specific activities are stated in the Certificate of Analysis (www. miltenyibiotec.com/certificates).

Overview
IFN-γ stands for interferon γ. Human IFN-γ is a recombinant protein optimized for use in cell culture, differentiation studies, and functional assays.