Porcine IL-12/IL-35 p35 Alexa Fluor® 700-conjugated Antibody

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IC1171N-100UG
R&D Systems Antibodies
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Porcine IL-12/IL-35 p35 Alexa Fluor® 700-conjugated Antibody Summary

Species Reactivity
Porcine
Specificity
Detects the heterodimeric form of porcine IL‑12 (p35/p40) in direct ELISAs. Western blotting data indicates recognition of the IL-12/IL-35 p35 subunit. In direct ELISAs and Western blots, 20‑100% cross-reactivity with the disulfide‑linked heterodomeric forms of recombinant mouse IL‑12 and recombinant human IL-12 is observed.
Source
Monoclonal Mouse IgG1 Clone # 116219
Immunogen
Chinese hamster ovary cell line CHO-derived recombinant porcine IL‑12 p35/p40 heterodimer
p40 Ile23-Asn324, p35 Arg26-Ser222
Accession # Q28938, Q29053
Formulation
Supplied 0.2 mg/mL in a saline solution containing BSA and Sodium Azide.
Label
Alexa Fluor 700 (Excitation= 675-700 nm, Emission= 723 nm)

Applications

Recommended Concentration
Sample
Intracellular Staining by Flow Cytometry
0.25-1 µg/106 cells
Porcine peripheral blood mononuclear cells treated with LPS, then fixed with paraformaldehyde and permeabilized with saponin

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

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Preparation and Storage

Shipping
The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage
Store the unopened product at 2 - 8 °C. Do not use past expiration date.

Background: IL-12/IL-35 p35

Interleukin 12, also known as natural killer cell stimulatory factor (NKSF) or cytotoxic lymphocyte maturation factor (CLMF), is a heterodimeric pleiotropic cytokine made up of a 40 kDa (p40) subunit and a 35 kDa (p35) subunit. IL-12 is produced by macrophages and B lymphocytes and has been shown to have multiple effects on T cells and natural killer (NK) cells. Some of these IL-12 activities include the induction of IFN-gamma and TNF in resting and activated T and NK cells, the enhancement of cytotoxic activity of resting NK and T cells, the stimulation of resting T cell proliferation in the presence of a comitogen, and the enhancement of NK cell proliferation. Current evidence indicates that IL-12 is a key mediator of cellular-immunity and induces the differentiation of Th1 cells from precursor T helper cells. Based on its activities, it has been suggested that IL-12 may have therapeutic potential as a vaccine adjuvant that promotes cellular-immunity and as an anti-tumor and anti-viral agent.

Porcine IL-12 subunits p35 and p40 share about 85% homology to the human subunits, but differ by containing a 3 aa addition in the p35 subunit and a 4 aa deletion in the p40 subunit. Porcine IL-12 induces proliferation of human lymphoblasts and IFN-gamma secretion by human and porcine lymph nodes. Porcine IL-12 has been detected in lymphoid tissues including inguinal and mesenteric lymph nodes, Peyer's patches, spleen and thymus.

References
  1. Foss, D. et al. (1997) Vet. Immunol. Immunopathol. 57:121.
Long Name
Interleukin 12 p35
Entrez Gene IDs
3592 (Human); 16159 (Mouse); 84405 (Rat)
Alternate Names
IL-12/IL-35 p35; IL-12A; IL35p35

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