IFN-γ is an acid-labile interferon produced by CD4 and CD8 T lymphocytes, as well as activated NK cells. IFN-γ receptors are present in most immune cells, which respond to IFN-γ signaling by increasing the surface expression of class I MHC proteins. This promotes the presentation of antigen to T-helper (CD4+) cells. IFN-γ signaling in antigen-presenting cells, and antigen-recognizing B and T lymphocytes, regulates the antigen-specific phases of the immune response. Additionally, IFN-γ stimulates a number of lymphoid cell functions, including the anti-microbial and anti-tumor responses of macrophages, NK cells, and neutrophils. Human IFN-γ is species-specific and is biologically active only in human and primate cells. Recombinant Rat IFN-γ is a 15.6 kDa protein containing 135 amino acid residues.
Source:
E.coli
Synonyms:
Immune Interferon, type II interferon, T cell interferon, MAF
AA Sequence:
MQGTLIESLE SLKNYFNSSS MDAMEGKSLL LDIWRNWQKD GNTKILESQI ISFYLRLFEV LKDNQAISNN ISVIESHLIT NFFSNSKAKK DAFMSIAKFE VNNPQIQHKA VNELIRVIHQ LSPESSLRKR KRSRC
Purity:
≥ 98% by SDS-PAGE gel and HPLC analyses.
Biological Activity:
The ED50 as determined by a cytopathic affect inhibition assay with murine L929 cells challenged with EMC virus was ≤ 0.1 ng/ml, corresponding to a specific activity of ≥ 1 x 107 units/mg.
