Produced by lymphocytes activated by specific antigens or mitogens. IFN-gamma, in addition to having antiviral activity, has important immunoregulatory functions. It is a potent activator of macrophages, it has antiproliferative effects on transformed cells and it can potentiate the antiviral and antitumor effects of the type I interferons. Homodimer. Released primarily from activated T lymphocytes. Belongs to the type II (or gamma) interferon family. Note: This description may include information from UniProtKB.
Protein type: Secreted; Cytokine; Membrane protein, integral; Secreted, signal peptide
Chromosomal Location of Human Ortholog: 12q14
Cellular Component: extracellular space; extracellular region; external side of plasma membrane
Biological Process: positive regulation of isotype switching to IgG isotypes; positive regulation of nitric oxide biosynthetic process; negative regulation of smooth muscle cell proliferation; positive regulation of osteoclast differentiation; apoptosis; positive regulation of interleukin-12 production; positive regulation of interleukin-23 production; positive regulation of interleukin-6 biosynthetic process; negative regulation of epithelial cell differentiation; negative regulation of transcription from RNA polymerase II promoter; sensory perception of mechanical stimulus; positive regulation of interleukin-1 beta secretion; positive regulation of killing of cells of another organism; positive regulation of membrane protein ectodomain proteolysis; cell surface receptor linked signal transduction; positive regulation of MHC class II biosynthetic process; positive regulation of mesenchymal cell proliferation; positive regulation of cell proliferation; positive regulation of T cell proliferation; cell cycle arrest; defense response to virus; regulation of the force of heart contraction; positive regulation of peptidyl-serine phosphorylation of STAT protein; response to drug; neutrophil chemotaxis; positive regulation of synaptic transmission, cholinergic; adaptive immune response; negative regulation of myelination; CD8-positive, alpha-beta T cell differentiation during immune response; unfolded protein response; response to virus; cytokine and chemokine mediated signaling pathway; positive regulation of tumor necrosis factor production; defense response to protozoan; humoral immune response; antigen processing and presentation; positive regulation of tyrosine phosphorylation of Stat1 protein; positive regulation of chemokine biosynthetic process; negative regulation of interleukin-17 production; positive regulation of interleukin-12 biosynthetic process; protein import into nucleus, translocation; defense response to bacterium; neutrophil apoptosis; positive regulation of transcription from RNA polymerase II promoter; positive regulation of neuron differentiation; cell motility; regulation of insulin secretion
SS: The number of records in which this modification site was determined using site-specific methods. SS methods include amino acid sequencing, site-directed mutagenesis, modification site-specific antibodies, specific MS strategies, etc.