Invitrogen

IL-12/IL-23 p40 Monoclonal Antibody (C8.3), eBioscience™

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View all (44) IL-12/IL-23 p40 antibodies
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Datasheet
Protocols
Questions & Answers

Product Details

14-7127-81

Applications
Tested Dilution
Publications

ELISA (ELISA)

1-4 µg/mL
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Product Specifications

Species Reactivity

Human

Published species

Mouse

Host/Isotype

Mouse / IgG1

Class

Monoclonal

Type

Antibody

Clone

C8.3

Conjugate

Unconjugated Unconjugated Unconjugated

Form

Liquid

Concentration

0.5 mg/mL

Purification

Affinity chromatography

Storage buffer

PBS, pH 7.2

Contains

0.09% sodium azide

Storage conditions

4° C

Shipping conditions

Ambient (domestic); Wet ice (international)

RRID

AB_468446

Product Specific Information

Description: The C8.3 antibody reacts with the p40 monomer of human IL-12 and IL-23; the antibody preferentially binds to monomeric p40.

Interleukin-12 (IL-12) is a heterodimeric 70 kD (p70) cytokine composed of two covalently linked, glycosylated chains, 40kD (p40) and 35-kD (p35). IL-12 is mainly produced by monocytes, macrophages, and dendritic cells in response to bacterial products such as lipopolysaccharides (LPS), to intracellular pathogens or upon interaction with activated T cells. IL-12 was originally discovered because of its ability to induce interferon-gamma production, cell proliferation, and cytotoxicity mediated by natural killer cells and T cells. It is now established that IL-12 also plays a key role in the development of Th1 responses, leading to IFN-gamma and IL-2 production. These cytokines can in turn promote T-cell responses and macrophage activation. The p40 and p35 subunits by themselves have no IL-12 bioactivity, though the p40 homodimer has been shown to bind the IL-12 receptor and to be an antagonist of IL-12 p70. Free p40 is typically secreted in vast excess of IL-12 p70 by cells co-expressing both the p35 and p40 subunits. The p40 subunit of IL-12 has been shown to have extensive amino acid sequence homology to the extracellular domain of the IL-6 receptor, while the p35 subunit shows some homology to IL-6 and G-CSF.

Applications Reported: The C8.3 antibody has been reported for use in ELISA.

Applications Tested: The IL-12/IL-23 p40 monomer ELISA using clones C8.3 and C8.6 preferentially measures p40 monomer, exhibiting less than 1.0% cross reactivity with IL-12 (p35p40) and IL-23 (p19p40).

For this assay, the (p40 monomer-specific) purified C8.3 antibody (14-7127) is used as the capture antibody in combination with the biotinylated C8.6 antibody (13-7129) for detection and recombinant human IL-12/IL-23 p40 (39-8128) as the standard. A standard curve consisting of doubling dilutions of the recombinant standard over the range of 10,000 pg/mL - 80.0 pg/mL should be included in each ELISA plate. A suitable range of concentrations of this antibody for ELISA capture is 1-4 µg/mL.

Purity: Greater than 90%, as determined by SDS-PAGE.

Aggregation: Less than 10%, as determined by HPLC.

Filtration: 0.2 µm post-manufacturing filtered.

Target Information

IL-12 is an interleukin produced by dendritic cells, neutrophils, macrophages and human lymphoblastoid cells as a result of antigenic stimulation. IL-12 is a heterodimeric cytokine encoded by IL-12A (p35) and IL-12B (p40). IL-23 is a heterodimeric cytokine that shares a subunit with IL-12 (IL-12B) along with an IL-23A (IL-23p19) subunit. Functionally, IL-12 increases the expression of vascular endothelial adhesion molecule-1 on the endothelium, directs leukocytes towards tumors and facilitates the ischemic-hemorrhagic necrosis of the tumor tissue. In comparison, IL-23 plays an important role in stimulating memory T-cells, and is required for the induction, expansion, maintenance and downstream effector functions of Th17 cells, which play a vital role in upregulating neutrophil chemokines and various pro-inflammatory cytokines.

For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.

Bioinformatics

Protein Aliases: CLMF p35; CLMF p40; cytotoxic lymphocyte maturation factor 1, p35; Cytotoxic lymphocyte maturation factor 35 kDa subunit; Cytotoxic lymphocyte maturation factor 40 kDa subunit; il 12; IL 12/IL 23p40; il 23; IL 23 p40; IL-12 subunit p35; IL-12 subunit p40; IL-12, subunit p35; IL-12A; IL-12B; IL-23 subunit alpha; IL-23-A; IL-23p19; IL12 p40; IL23; IL12, subunit p40; il23; IL23 p41; IL35 subunit; ILN; Interleukin; Interleukin 12; interleukin 12, p35; interleukin 12, p40; interleukin 12A (natural killer cell stimulatory factor 1, cytotoxic lymphocyte maturation factor 1, p35); interleukin 12B (natural killer cell stimulatory factor 2, cytotoxic lymphocyte maturation factor 2, p40); interleukin 23 p19 subunit; interleukin 23, alpha subunit p19; interleukin-12 alpha chain; interleukin-12 beta chain; Interleukin-12 subunit alpha; Interleukin-12 subunit beta; Interleukin-23 subunit alpha; Interleukin-23 subunit p19; interleukin-six, G-CSF related factor; Interleukin12; JKA3 induced upon T-cell activation; natural killer cell stimulatory factor, 40 kD subunit; NF cell stimulatory factor chain 1; NK cell stimulatory factor chain 1; NK cell stimulatory factor chain 2; NKSF1; NKSF2; RP23-388G23.1

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Gene Aliases: CLMF; CLMF2; IL-12A; IL-12B; IL-23; IL-23A; IL12A; IL12B; IL23A; IL23P19; IMD28; IMD29; NFSK; NKSF; NKSF1; NKSF2; P19; P35; SGRF; UNQ2498/PRO5798

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UniProt ID: (Human) P29459, (Human) P29460, (Human) Q9NPF7

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Entrez Gene ID: (Human) 3592, (Human) 3593, (Human) 51561

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Function(s)
cytokine activity interleukin-12 receptor binding protein binding growth factor activity interleukin-12 beta subunit binding interleukin-27 binding protein heterodimerization activity cytokine receptor activity interleukin-12 alpha subunit binding identical protein binding protein homodimerization activity interleukin-23 receptor binding transmembrane signal receptor cytokine immunoglobulin interleukin superfamily intercellular signal molecule
Process(es)
positive regulation of T cell mediated cytotoxicity positive regulation of natural killer cell mediated cytotoxicity directed against tumor cell target immune response cell cycle arrest response to virus response to UV-B cell migration response to lipopolysaccharide negative regulation of interleukin-17 production positive regulation of interferon-gamma production positive regulation of natural killer cell activation positive regulation of mononuclear cell proliferation positive regulation of smooth muscle cell apoptotic process positive regulation of T cell proliferation positive regulation of tyrosine phosphorylation of Stat4 protein defense response to protozoan positive regulation of T cell differentiation positive regulation of cell adhesion positive regulation of natural killer cell mediated cytotoxicity negative regulation of smooth muscle cell proliferation positive regulation of lymphocyte proliferation defense response to Gram-positive bacterium positive regulation of NK T cell activation cellular response to lipopolysaccharide extrinsic apoptotic signaling pathway cellular response to virus positive regulation of dendritic cell chemotaxis positive regulation of defense response to virus by host natural killer cell activation involved in immune response positive regulation of T-helper 1 type immune response negative regulation of inflammatory response to antigenic stimulus positive regulation of activation of JAK2 kinase activity cytokine-mediated signaling pathway sensory perception of pain sexual reproduction natural killer cell activation negative regulation of interleukin-10 production positive regulation of granulocyte macrophage colony-stimulating factor production positive regulation of interleukin-10 production positive regulation of interleukin-12 production positive regulation of interleukin-17 production positive regulation of tumor necrosis factor production positive regulation of natural killer cell proliferation positive regulation of tissue remodeling regulation of cytokine biosynthetic process T-helper 1 type immune response T-helper cell differentiation interferon-gamma biosynthetic process positive regulation of activated T cell proliferation positive regulation of NF-kappaB import into nucleus regulation of tyrosine phosphorylation of Stat1 protein positive regulation of tyrosine phosphorylation of Stat3 protein positive regulation of tyrosine phosphorylation of Stat5 protein positive regulation of memory T cell differentiation negative regulation of growth of symbiont in host positive regulation of interferon-gamma biosynthetic process positive regulation of osteoclast differentiation positive regulation of inflammatory response defense response to Gram-negative bacterium positive regulation of NK T cell proliferation defense response to virus cellular response to interferon-gamma positive regulation of T-helper 17 type immune response positive regulation of T-helper 17 cell lineage commitment inflammatory response T cell proliferation innate immune response positive regulation of transcription from RNA polymerase II promoter tissue remodeling positive regulation of neutrophil chemotaxis
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