Invitrogen

IL-23 p19 Antibody Cocktail, eBioscience™

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View all (41) IL-23 p19 antibodies

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Datasheet
Protocols
Questions & Answers
Datasheet
Protocols
Questions & Answers

Product Details

14-7238-85

Applications
Tested Dilution
Publications

Western Blot (WB)

2 µg/mL
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Immunohistochemistry (Frozen) (IHC (F))

-
View 1 publication 1 publication

ELISA (ELISA)

2.5-8 µg/mL
-

Functional Assay (Functional)

-
View 1 publication 1 publication
Product Specifications

Species Reactivity

Human

Published species

Human

Host/Isotype

Mouse / IgG1, kappa

Class

Cocktail

Type

Antibody

Clone

eBio473P19 (eBio11P19, eBio25P19)

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_468464

Product Specific Information

Description: The antibody eBio473P19 reacts with the p19 subunit of human IL-23. The eBio473P19 antibody was generated from immunization with authentic, insect cell-expressed, recombinant human IL-23 heterodimer.

The use of a p19-specific capture antibody and a p40-specific detection antibody yields a human IL-23 sandwich ELISA exquisitely specific for human IL-23. IL-12 p40 monomer and IL-12 p70 were run in the assay at 200 ng/mL with no interference or cross-reactivity observed. A panel of 20 unrelated cytokines was also run in the IL-23 ELISA at 100 ng/mL with no cross reactivity observed. The assay has been validated by specific detection of significant levels of native human IL-23 protein in supernatants from a variety of different activated dendritic cell populations.

IL-23 is a heterodimeric cytokine composed of the p40 subunit of IL-12 disulfide-linked with a protein p19. p19, like p35 of IL-12, is biologically inactive by itself. IL-23 interacts with IL-12Rbeta1 and an additional, novel beta2-like receptor subunit with STAT4 binding domain, termed IL-23R. IL-23 is secreted by activated mouse and human dendritic cells. Biological activities of mouse IL-23 are distinct from those of mouse IL-12. Mouse IL-23 was found not to induce significant amounts of IFN-g. Mouse IL-23 does induce strong proliferation of memory T cells (but not naive T cells), whereas IL-12 has no effect on memory cells. Additionally, mouse IL-23 (but not IL-12) can activate mouse memory T cells to produce the proinflammatory cytokine IL-17. Human IL-23 has biological properties which are less distinct from human IL-12; human IL-23 induces proliferation of memory T cells and induces moderate levels of IFN-g production by naive and memory T cells, as compared to IL-12. IL-23-dependent, IL-17-producing CD4+ T cells (Th-17 cells) have been identified as a unique subset of Th cells that develops along a pathway that is distinct from the Th1- and Th2- cell differentiation pathways. The hallmark effector molecules of Th1 and Th2 cells, e.g., IFN-g and IL-4, have each been found to negatively regulate the generation of these Th-17 cells. More recently, de novo differentiation of Th-17 cells in the absence of IL-23 has been demonstrated by treatment of naive CD4 cells with TGF beta1 and IL-6.

Applications Reported: This eBio473P19 antibody has been reported for use in immunoblotting (WB), and ELISA.

Applications Tested: The eBio473P19 antibody has been tested as the capture antibody in a sandwich ELISA for analysis of human IL-23 (p19p40) protein levels in combination with the biotinylated (p40-specific) C8.6 antibody (13-7129) for detection and recombinant human IL-23 (14-8239) as the standard. A suitable range of concentrations of this antibody for ELISA capture is 2.5-8.0 µg/mL. A standard curve consisting of doubling dilutions of the recombinant IL-23 standard over the range of 2000 pg/mL - 15 pg/mL should be included in each ELISA plate. TMB, rather than ABTS, should be used as the substrate.The antibody eBio473p19 also works in immunoblotting under both reducing and nonreducing conditions at 2 µg/mL.

*eBio473P19 is a cocktail of the two clones, eBio11P19 and eBio25P19 at 0.5 mg/mL each. Please contact Tech Support for more information regarding the concentration.

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-23 is a heterodimeric cytokine composed of the p40 subunit of IL-12 disulfide-linked with a protein p19. p19, like p35 of IL-12, is biologically inactive by itself. IL-23 interacts with IL-12Rbeta1 and an additional, novel beta2-like receptor subunit with STAT4 binding domain, termed IL-23R. IL-23 is secreted by activated mouse and human dendritic cells. Biological activities of mouse IL-23 are distinct from those of mouse IL-12. Mouse IL-23 was found not to induce significant amounts of IFN-γ. Mouse IL-23 does induce strong proliferation of memory T cells (but not naive T cells), whereas IL-12 has no effect on memory cells. Additionally, mouse IL-23 (but not IL-12) can activate mouse memory T cells to produce the proinflammatory cytokine IL-17. Human IL-23 has biological properties which are less distinct from human IL-12; human IL-23 induces proliferation of memory T cells and induces moderate levels of IFN-γ production by naive and memory T cells, as compared to IL-12.

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

Bioinformatics

Protein Aliases: il 23; IL 23 A; Il-12b; Il-12p40; IL-23 subunit alpha; IL-23-A; IL-23p19; IL12B; Il12p40; il23; ILN; Interleukin; interleukin 12B; interleukin 23 p19 subunit; interleukin 23, alpha subunit p19; Interleukin-23 subunit alpha; Interleukin-23 subunit p19; interleukin-six, G-CSF related factor; JKA3 induced upon T-cell activation; MGC79388; p40; RP23-388G23.1

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Gene Aliases: IL-23; IL-23A; IL23A; IL23P19; P19; SGRF; UNQ2498/PRO5798

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UniProt ID: (Human) Q9NPF7

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Entrez Gene ID: (Human) 51561

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Function(s)
cytokine activity protein binding interleukin-23 receptor binding
Process(es)
positive regulation of T cell mediated cytotoxicity positive regulation of defense response to virus by host positive regulation of T-helper 1 type immune response inflammatory response positive regulation of activation of JAK2 kinase activity negative regulation of interleukin-10 production positive regulation of granulocyte macrophage colony-stimulating factor production positive regulation of interferon-gamma 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 activation positive regulation of natural killer cell proliferation positive regulation of tissue remodeling T cell proliferation positive regulation of T cell proliferation 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 Stat4 protein positive regulation of tyrosine phosphorylation of Stat5 protein positive regulation of memory T cell differentiation innate immune response positive regulation of osteoclast differentiation positive regulation of transcription from RNA polymerase II promoter tissue remodeling positive regulation of inflammatory response defense response to Gram-negative bacterium positive regulation of NK T cell activation positive regulation of NK T cell proliferation defense response to virus positive regulation of neutrophil chemotaxis positive regulation of T-helper 17 type immune response positive regulation of T-helper 17 cell lineage commitment
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