Anti-Human IL-12 p70

Antibody Details

Product Details

Reactivity Species

Human

Host Species

Mouse

Immunogen

Sf 21-Derived Recombinant Human Interleukin-12 (Accession # P29459 (p35) & P29460 (p40))

Formulation

This monoclonal antibody has been 0.2 µm filtered and lyophilized from modified Dulbecco's phosphate buffered saline (1X PBS) pH 7.2 - 7.3 containing 5.0% w/v trehalose with no calcium, magnesium or preservatives present.

Storage and Handling

The lyophilized antibody can be stored desiccated at -20°C to -70°C for up to twelve months. The reconstituted antibody can be stored for at least four weeks at 2-8°C. For long-term storage of the reconstituted antibody, aseptically aliquot into working volumes and store at -20°C to -70°C in a manual defrost freezer. Avoid repeated freeze thaw cycles. No detectable loss of activity was observed after six months.

Country of Origin

USA

Shipping

Next Day Ambient

RRID

AB_2830808

Applications and Recommended Usage?
Quality Tested by Leinco

ELISA Sandwich: This antibody is useful as the capture antibody in a sandwich ELISA. The suggested coating concentration is 2 - 8 µg/ml.

Other Applications Reported In Literature ?

Immunocytochemistry: Suitable for use at concentration of 8-25 µg/mL.

Each investigator should determine their own optimal working dilution for specific applications. See directions on lot specific datasheets, as information may periodically change.

Description

Specificity

Mouse Anti-Human Interleukin 12 p70 (Clone 24945) recognizes an epitope on Human Interleukin 12 p70. This monoclonal antibody was purified using multi-step affinity chromatography methods such as Protein A or G depending on the species and isotype.

Background

Interleukin 12 (IL-12, NK cell stimulatory factor, cytotoxic lymphocyte maturation factor) is a heterodimeric cytokine that is naturally produced by dendritic cells¹ , macrophages and human B-lymphoblastoid cells (NC-37) in response to antigenic stimulation. IL-12 is involved in the differentiation of naive T cells into Th1 cells, which is important in resistance against pathogens. It is known as a T cell stimulating factor, which can stimulate the growth and function of T cells. It stimulates the production of IFN-γ and TNF-α from T and natural killer (NK) cells, and reduces IL-4 mediated suppression of IFN-γ. IL-12 also has anti-angiogenic activity, which can block the formation of new blood vessels. IL-12 binds to the IL-12 receptor and upon binding, IL-12R-β2 becomes tyrosine phosphorylated and provides binding sites for kinases, Tyk2 and Jak2. These are important in activating critical transcription factor proteins such as STAT4 which are implicated in IL-12 signaling in T cells and NK cells.² IL-12 contributes to the antimycobacterial immune response by enhancing production of interferon-gamma, facilitating development of Th1 cells and augmenting cytotoxicity of antigen-specific T cells and natural killer cells.³

Antigen Details

Protein

IL-12 p70

PubMed

IL-12 p70

References & Citations

1. Kapsenberg, ML. et al. (1997) J. Immunol. 159: 28
2. Ritz, J. et al. (2001) Blood. 97(12):3860-6.
3. Barnes, PF. et al. (1994) J Clin Invest. 93(4):1733-9.

Technical Protocols