IL12 protein (Mouse) (30R-2251)
Purified recombinant Mouse IL12 protein
Overview
Overview
| Synonyms | IL 12, Interleukin-12 protein, IL12, IL-12 protein, IL 12 protein, IL12 protein, IL-12, p70 protein |
|---|---|
| Specificity | Human |
| Species | Mouse |
| Protein Type | Recombinant |
| Applications | FC |
| Assay Information | The pre-titrated test size contains 0.2% BSA. |
Specifications
| Expression System | Insect cells |
|---|---|
| Grade & Purity | > 98% pure |
| Molecular Weight | 57 kDa |
| Form & Buffer | Supplied as a sterile liquid with 10 mM NaH2PO4, pH 6.0, 300mM NaCl. 0.22 um filtered. |
| Concentration | 5 ul (1 ug)/test |
Usage & Assay Information
| Usage Recommendations | FC: 5 ul (1 ug)/test per million cells (100 ul blood) |
|---|---|
| Bioactivity | The ED50 of this protein, as measured by IFN gamma induction assay in mouse splenocytes, is less than or equal to 175 pg/ml. This corresponds to a specific activity of greater than or equal to 5.7 x 10e6 Units/mg. |
Storage & Safety
| Storage | Store at -70 deg C or less. |
|---|---|
| Endotoxin Levels | Less than 0.01 ng/ug cytokine as determined by the LAL assay. |
General Information
| Biological Significance | Interleukin-12 is a heterodimeric 70 kD cytokine composed of two covalently linked, glycosylated chains, 40kD and 35-kD. IL-12 is mainly produced by monocytes, macrophages, and dendritic cells in response to bacterial products such as lipopolysaccharides, to intracellular pathogens or upon interaction with activated T cells. IL-12 was originally discovered because of its ability to induce interferon-gamma production, cell proliferation, and cytotoxicity mediated by natural killer cells and T cells. It is now established that IL-12 also plays a key role in the development of Th1 responses, leading to IFN-g and IL-2 production. These cytokines can in turn promote T-cell responses and macrophage activation. Recombinant mouse IL-12 p70 is produced in baculovirus-infected insect cells as an authentic heterodimer of precursor p35 and p40 subunits using a dual promoter expression system. It is distinct from other available forms of the protein in that it is expressed as a true heterodimer, as opposed to a single-chain, pseudo-heterodimer in which the subunits are joined by an artificial linker. |
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