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Mouse IL-12 Recombinant Protein
Cytokines & Growth Factors
Growth Factors and Cytokines

Mouse IL-12 Recombinant Protein #31502

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Mouse IL-12 Recombinant Protein: Image 1
Serial dilutions of Mouse IL-12 Recombinant Protein were added to HEK-BlueTM IL-12 cells. The induction of secreted embryonic alkaline phosphatase (SEAP) production was measured and the linear portion of the curve was used to calculate the ED50.


Mouse IL-12 Recombinant Protein is supplied as lyophilized material that is very stable at -20°C. It is recommended to reconstitute with sterile water at a concentration of 0.1 mg/ml which can be further diluted in aqueous solutions as needed. Addition of a carrier protein (0.1% HSA or BSA) is recommended for long-term storage.

Product Description

MW (kDa) 57.5
Purity A greater than or equal to 95% purity was determined by SDS-PAGE.
Endotoxin Endotoxin levels are less than or equal to 1 EU / 1 μg mIL-12.
Activity The bioactivity of recombinant mIL-12 was determined in a secreted embryonic alkaline phosphatase (SEAP) induction assay using HEK-BlueTM IL-12 cells. The ED50 of each lot is less than or equal to 15 ng/ml. HEK-BlueTM IL-12 cells were purchased from InvivoGen Inc.

Source / Purification

Recombinant mouse IL-12 was expressed in genetically modified HEK 293 cells and is supplied in a lyophilized form.


Interleukin-12 (IL-12) is a heterodimeric pro-inflammatory cytokine best known for inducing IFN-γ production in T cells and NK cells (1,2). The IL-12 family of cytokines is composed of IL-12, IL-23, IL-27, and IL-35. The predominant physiological producers of IL-12 are antigen-presenting cells (APCs), such as DCs and macrophages (3). IL-12 consists of two disulfide-linked subunits (p35 and p40) that regulate the biosynthesis of IL-12p70 (4). The effects of IL-12 are mediated through its high-affinity receptor that contains two subunits: IL-12Rβ1 and IL-12Rβ2 (3,5). Binding of IL-12 induces naïve CD4+ T cells to differentiate into T helper 1 (TH1) cells mainly through the activation of Stat4 (3,5). The effect that IL-12 has on innate and adaptive immunity makes it a target of interest when studying different autoimmune diseases and cancers (2).
  1. Trinchieri, G. (2003) Nat Rev Immunol 3, 133-46.
  2. Zundler, S. and Neurath, M.F. (2015) Cytokine Growth Factor Rev 26, 559-68.
  3. Sun, L. et al. (2015) Cytokine 75, 249-55.
  4. Jalah, R. et al. (2013) J Biol Chem 288, 6763-76.
  5. Floss, D.M. et al. (2016) Mol Biol Cell 27, 2301-16.

Pathways & Proteins

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Limited Uses

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Products are labeled with For Research Use Only or a similar labeling statement and have not been approved, cleared, or licensed by the FDA or other regulatory foreign or domestic entity, for any purpose. Customer shall not use any Product for any diagnostic or therapeutic purpose, or otherwise in any manner that conflicts with its labeling statement. Products sold or licensed by CST are provided for Customer as the end-user and solely for research and development uses. Any use of Product for diagnostic, prophylactic or therapeutic purposes, or any purchase of Product for resale (alone or as a component) or other commercial purpose, requires a separate license from CST. Customer shall (a) not sell, license, loan, donate or otherwise transfer or make available any Product to any third party, whether alone or in combination with other materials, or use the Products to manufacture any commercial products, (b) not copy, modify, reverse engineer, decompile, disassemble or otherwise attempt to discover the underlying structure or technology of the Products, or use the Products for the purpose of developing any products or services that would compete with CST products or services, (c) not alter or remove from the Products any trademarks, trade names, logos, patent or copyright notices or markings, (d) use the Products solely in accordance with CST Product Terms of Sale and any applicable documentation, and (e) comply with any license, terms of service or similar agreement with respect to any third party products or services used by Customer in connection with the Products.

For Research Use Only. Not For Use In Diagnostic Procedures.
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To Purchase # 31502
Cat. # Size Qty. Price
10 µg
$ 215