Key Product Details

Species Reactivity

Validated:

Human

Cited:

Human

Applications

Validated:

Immunohistochemistry, Western Blot, Neutralization

Cited:

Immunohistochemistry-Paraffin, Neutralization, Flow Cytometry, Immunocytochemistry, Bioassay, Blocking, ELISA Capture

Label

Unconjugated

Antibody Source

Monoclonal Mouse IgG1 Clone # 24910
View all IL-12 p70 Primary Antibodies »

Product Specifications

Immunogen

S. frugiperda insect ovarian cell line Sf 21-derived recombinant human IL-12 p70

Specificity

Detects human IL-12 p70 in direct ELISAs and Western blots. In direct ELISAs and Western blots, no cross-reactivity with recombinant human (rh) IL-12 p40 homodimer or rhIL-23 is observed.

Clonality

Monoclonal

Host

Mouse

Isotype

IgG1

Endotoxin Level

<0.10 EU per 1 μg of the antibody by the LAL method.

Scientific Data Images for Human IL‑12 p70 Antibody

IL-12 p70 antibody in Human Kidney by Immunohistochemistry (IHC-P).

IL‑12 p70 in Human Kidney.

IL-12 p70 was detected in immersion fixed paraffin-embedded sections of human spleen using Mouse Anti-Human IL-12 p70 Monoclonal Antibody (Catalog # MAB219) at 5 µg/mL for 1 hour at room temperature followed by incubation with the Anti-Mouse IgG VisUCyte™ HRP Polymer Antibody (Catalog # VC001). Before incubation with the primary antibody, tissue was subjected to heat-induced epitope retrieval using Antigen Retrieval Reagent-Basic (Catalog # CTS013). Tissue was stained using DAB (brown) and counterstained with hematoxylin (blue). Specific staining was localized to plasma membrane and cytoplasm. View our protocol for IHC Staining with VisUCyte HRP Polymer Detection Reagents.

Cell Proliferation Induced by IL‑12 and Neutralization by Human IL‑12 p70 Antibody.

Cell Proliferation Induced by IL‑12 and Neutralization by Human IL‑12 p70 Antibody.

Recombinant Human IL-12 (Catalog # 219-IL) stimulates proliferation in PHA-activated human peripheral blood mononuclear cells (PBMC) in a dose-dependent manner (orange line). Proliferation elicited by Recombinant Human IL-12 (1 ng/mL) is neutralized (green line) by increasing concentrations of Human IL-12 p70 Monoclonal Antibody (Catalog # MAB219). The ND50 is typically 0.3-0.9 µg/mL.

Applications for Human IL‑12 p70 Antibody

Application
Recommended Usage

Immunohistochemistry

8-25 µg/mL
Sample: Immersion fixed paraffin-embedded sections of human kidney

Western Blot

1 µg/mL
Sample: Recombinant Human IL‑12 (Catalog # 219-IL)
under non-reducing conditions only

Neutralization

Measured by its ability to neutralize IL‑12 p70-induced proliferation in PHA-activated human peripheral blood mononuclear cells (PBMC). Stern, A. S. et al. (1990) Proc. Natl. Acad. Sci. USA 87:6808. The Neutralization Dose (ND50) is typically 0.3-0.9 µg/mL in the presence of 1 ng/mL Recombinant Human IL‑12.

Reviewed Applications

Read 3 reviews rated 4.7 using MAB219 in the following applications:

Formulation, Preparation, and Storage

Purification

Protein A or G purified from hybridoma culture supernatant

Reconstitution

Reconstitute at 0.5 mg/mL in sterile PBS. For liquid material, refer to CoA for concentration.

Formulation

Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.

Shipping

Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store immediately at the temperature recommended below.

Stability & Storage

Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.

Calculators

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.

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Background: IL-12 p70

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. Biologically active IL-12 is a disulfide-linked, 70 kDa (p70) heterodimeric glycoprotein composed of a 40 kDa (p40) subunit and a 35 kDa (p35) subunit.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 p70

Alternate Names

IL12 p70

Entrez Gene IDs

3592 (Human); 16159 (Mouse); 84405 (Rat)

Gene Symbol

IL12A

Additional IL-12 p70 Products

Product Documents for Human IL‑12 p70 Antibody

Certificate of Analysis

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Note: Certificate of Analysis not available for kit components.

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Product Specific Notices for Human IL‑12 p70 Antibody

For research use only

Citations for Human IL‑12 p70 Antibody

Customer Reviews for Human IL‑12 p70 Antibody (3)

4.7 out of 5
3 Customer Ratings
5 Stars
67%
4 Stars
33%
3 Stars
0%
2 Stars
0%
1 Stars
0%

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  • Human IL-12 p70 Antibody
    Name: Anonymous
    Application: Western Blot
    Sample Tested: Blood mononuclear cells
    Species: Human
    Verified Customer | Posted 08/23/2021
    Human IL‑12 p70 Antibody MAB219
  • Human IL-12 p70 Antibody
    Name: Greta Beckerle
    Application: ELISA
    Sample Tested: Blood mononuclear cells (PBMCs)
    Species: Human
    Verified Customer | Posted 05/17/2017
  • Name: Greta Beckerle
    Verified Customer | Posted 04/26/2017

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Protocols

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