- C11.5 (See other available formats)
- Regulatory Status
- Other Names
- Interleukin-12 p40, Interleukin-23 p40, Cytotoxic lymphocyte maturation factor (CLMF), Natural killer cell stimulatory factor (NKSF), CTL maturation factor (TcMF), T-cell stimulating factor (TSF)
- Mouse IgG1, κ
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- Product Citations
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The C11.5 antibody reacts with human IL-12 p40 subunit of the IL-12 p70 heterodimer and IL-23 p40 subunit of the IL-23 p19/p40, as well as p40 monomer and homodimer. The C11.5 antibody can neutralize the bioactivity of natural or recombinant IL-12 p70.Product Details
- Human, IL-12/IL-23 p40 subunit (monomer, homodimer and heterodimer IL-12 p35/p40 or IL-23 p19/p40)
- Antibody Type
- Host Species
- CHO-expressed, recombinant human IL-12 p70 heterod
- Phosphate-buffered solution, pH 7.2, containing 0.09% sodium azide and 0.2% (w/v) BSA (origin USA).
- The antibody was purified by affinity chromatography and conjugated with Alexa Fluor® 647 under optimal conditions.
- Lot-specific (please contact technical support for concentration and total µg amount, or use our Lookup tool if you have a lot number.)
- Storage & Handling
- The antibody solution should be stored undiluted between 2°C and 8°C, and protected from prolonged exposure to light. Do not freeze.
ICFC - Quality tested
- Recommended Usage
Each lot of this antibody is quality control tested by intracellular immunofluorescent staining with flow cytometric analysis. For flow cytometric staining, the suggested use of this reagent is 5 µl per 106 cells in 100 µl volume. It is recommended that the reagent be titrated for optimal performance for each application.
* Alexa Fluor® 647 has a maximum emission of 668 nm when it is excited at 633nm / 635nm.
Alexa Fluor® and Pacific Blue™ are trademarks of Life Technologies Corporation.
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- Excitation Laser
Red Laser (633 nm)
- Application Notes
Flow Cytometry3,5: The fluorochrome-labeled C11.5 antibody is useful for intracellular immunofluorescent staining and flow cytometric analysis to identify IL-12 p40 (monomeric, heterodimeric, homodimeric) -producing cells within mixed cell populations. For intracellular cytokine staining protocol, please visit www.biolegend.com and click on the support section.
Neutralization6: The LEAF™ purified antibody (Endotoxin <0.1 EU/µg, Azide-Free, 0.2 µm filtered) is recommended for functional assays (Cat. No. 501813).
Additional reported applications (for the relevant formats) include: Western blotting, ELISA Capture1,2, ICFC Blocking, immunohistochemical staining4 of paraformaldehyde-fixed, saponin-treated tissue frozen sections, and immunocytochemistry.
Note: For testing human IL-12/IL-23 p40 (monomer, dimer) in serum or plasma, BioLegend's ELISA Max™ Sets (Cat. No. 430701 to 430706) are specially developed and recommended. For testing human IL-12 p70 in serum or plasma, BioLegend's ELISA Max™ Sets (Cat. No. 431701 to 431706) are specially developed and recommended.
(PubMed link indicates BioLegend citation)
- D'Andrea A, et al. 1992. J. Exp. Med. 176:1387.
- D'Andrea A, et al. 1993. J. Exp. Med. 178:1041.
- Prussin C, et al. 1995. J. Immunol. Meth. 188:117.
- Leifeld L, et al. 2002. Hepatology 36:1001.
- Pekkari K, et al. 2001. Blood 97:3184.
- Bolovan-Fritts CA, et al. 2004. J. Virol. 78:13173.
- Product Citations
AB_2124518 (BioLegend Cat. No. 501818)
- Cytokine; monomer, heterodimer (p40:p35 or p40:p19) or homodimer (p40:p40)
- IL-12 p70 (p40:p35) induces IFN-?, TNF-a production in T and NK cells; costimulation of PBL proliferation; proliferation/differentiation of TH1 T lymphocytes. IL-23 (p40:p19) induces proliferation and production of IFN-? by human memory T cells, but not n
- Cell Sources
- Dendritic cells, monocytes/macrophages, B cells, T cells
- Cell Targets
- T cells, NK cells, PBL
- IL-12Rß1 binds p40; dimeric with IL-12Rß2 binds p35
- Biology Area
- Immunology, Innate Immunity
- Molecular Family
- Antigen References
1. Fitzgerald K, et al. Eds. 2001. The Cytokine FactsBook. Academic Press San Diego.
2. Quesniaux V. 1992. Research Immunol. 143:385.
3. Trinchieri G, et al. 1992 Prog. Growth Factor Res. 4:355.
4. Trinchieri G, et al. 1993 Immunol. Today. 14:335.
5. Oppmann B, et al. 2000 Immunity. 13:715.
6. Aggarwal S, et al. 2003 J. Biol. Chem. 278:1910.
7. Parham C, et al. 2002 J. Immunol. 168:5699.
8. Belladonna ML, et al. 2002 J. Immunol. 168:5448.
9. Lankford CS, et al. 2003 J. Leukoc. Biol. 73:49.
- Downregulated by IL-10; homodimeric p40 antagonistic to functional p70 heterodimer; p40 monomer has no function; p40 subunit in common with IL-23
- Gene ID
- 3593 View all products for this Gene ID
- View information about IL-12 p40 on UniProt.org
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