Human IL-12/IL-35 p35 Alexa Fluor® 750-conjugated Antibody

Recombinant Monoclonal Antibody
Catalog # Availability Size / Price Qty
IC15701S-100UG
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Human IL-12/IL-35 p35 Alexa Fluor® 750-conjugated Antibody Summary

Species Reactivity
Human
Specificity
Detects human IL-12/IL-35 p35 in direct ELISAs. Detects the IL-12/IL-35 p35 subunit either as part of the IL-12 p40/p35 heterodimer or as the IL-12/IL-35 p35 monomer. This antibody does not detect the IL-12/IL-23 p40 subunit.
Source
Recombinant Monoclonal Rabbit IgG Clone # 2038C
Purification
Protein A or G purified from cell culture supernatant
Immunogen
S. frugiperda insect ovarian cell line Sf 21-derived recombinant human IL-12 p40 and human IL-12 p35
Ile23-Ser328 of p40, Arg23-Ser219 of p35
Accession # P29460 (p40) & P29459 (P35)
Formulation
Supplied 0.2 mg/mL in a saline solution containing BSA and Sodium Azide.
Label
Alexa Fluor 750 (Excitation= 749 nm, Emission= 775 nm)

Applications

Recommended Concentration
Sample
Intracellular Staining by Flow Cytometry
0.25-1 µg/106 cells
Human PBMCs treated with rhIFN- gamma and LPS, fixed and permeabilized with FlowX FoxP3 Fixation & Permeabilization Buffer Kit (Catalog # FC012)

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
Protect from light. Do not freeze.
  • 12 months from date of receipt, 2 to 8 °C as supplied.

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 pleiotropic cytokine originally identified in the medium of activated human B lymphoblastoid cell lines. The p40 subunit of IL-12 has been shown to have extensive amino acid sequence homology to the extracellular domain of the human IL-6 receptor while the p35 subunit shows distant but significant sequence similarity to IL-6, G-CSF, and chicken MGF. These observations have led to the suggestion that IL-12 might have evolved from a cytokine/soluble receptor complex. Human and murine IL-12 share 70% and 60% amino acid sequence homology in their p40 and p35 subunits, respectively. IL-12 apparently shows species specificity with human IL-12 reportedly showing minimal activity in the murine system.

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. These effects include inducing production of IFN-gamma and TNF by resting and activated T and NK cells, synergizing with other IFN-gamma  inducers at both the transcriptional and post-transcriptional levels. This interaction induces IFN-gamma  gene expression, enhancing the cytotoxic activity of resting NK and T cells, inducing and synergizing with IL-2 in the generation of lymphokine-activated killer (LAK) cells, acting as a co-mitogen to stimulate proliferation of resting T cells, and inducing proliferation of activated T and NK cells. Current evidence indicates that IL‑12, produced by macrophages in response to infectious agents, is a central mediator of the cell‑mediated immune response by its actions on the development, proliferation, and activities of TH1 cells. In its role as the initiator of cell-mediated immunity, it has been suggested that IL-12 has therapeutic potential as a stimulator of cell-mediated immune responses to microbial pathogens, metastatic cancers, and viral infections such as AIDS.

Long Name
Interleukin 12 p35
Entrez Gene IDs
3592 (Human); 16159 (Mouse); 84405 (Rat)
Alternate Names
CLMF p35; CLMF; cytotoxic lymphocyte maturation factor 1, p35; Cytotoxic lymphocyte maturation factor 35 kDa subunit; IL-12, subunit p35; IL-12/IL-35 p35; IL-12A; IL35 subunit; IL35p35; interleukin 12, p35; interleukin 12A (natural killer cell stimulatory factor 1, cytotoxic lymphocyte maturation factor 1, p35); interleukin-12 alpha chain; interleukin-12 subunit alpha; NF cell stimulatory factor chain 1; NFSK; NK cell stimulatory factor chain 1; NKSF1; p35

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Product Specific Notices


This product is provided under an agreement between Life Technologies Corporation and R&D Systems, Inc, and the manufacture, use, sale or import of this product is subject to one or more US patents and corresponding non-US equivalents, owned by Life Technologies Corporation and its affiliates. The purchase of this product conveys to the buyer the non-transferable right to use the purchased amount of the product and components of the product only in research conducted by the buyer (whether the buyer is an academic or for-profit entity). The sale of this product is expressly conditioned on the buyer not using the product or its components (1) in manufacturing; (2) to provide a service, information, or data to an unaffiliated third party for payment; (3) for therapeutic, diagnostic or prophylactic purposes; (4) to resell, sell, or otherwise transfer this product or its components to any third party, or for any other commercial purpose. Life Technologies Corporation will not assert a claim against the buyer of the infringement of the above patents based on the manufacture, use or sale of a commercial product developed in research by the buyer in which this product or its components was employed, provided that neither this product nor any of its components was used in the manufacture of such product. For information on purchasing a license to this product for purposes other than research, contact Life Technologies Corporation, Cell Analysis Business Unit, Business Development, 29851 Willow Creek Road, Eugene, OR 97402, Tel: (541) 465-8300. Fax: (541) 335-0354.

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