Human IL‑23 p19 PE‑conjugated Antibody

Name: Human IL‑23 p19 PE‑conjugated Antibody
Brand: R&D Systems
SKU: IC17161P

R&D Systems | Catalog # IC17161P

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Product Documents

Discontinued Product

IC17161P has been discontinued. View all IL-23 products.

Product Specifications
Scientific Data
Applications
Spectra Viewer
Flow Cytometry
Preparation & Storage
Background
Product Documents
Specific Notices
Research Areas

Key Product Details

Species Reactivity

Human

Applications

Intracellular Staining by Flow Cytometry

Label

Phycoerythrin (Excitation = 488 nm, Emission = 565-605 nm)

Antibody Source

Monoclonal Mouse IgG_2B Clone # 727753

View all IL-23 Primary Antibodies »

Product Specifications

Immunogen

E. coli-derived recombinant human IL-23 p19
Arg20-Pro189
Accession # Q9NPF7

Specificity

Detects human IL-23 p19 in direct ELISAs and Western blots. In direct ELISAs, approximately 50% cross-reactivity with recombinant human (rh) IL-23 heterodimer is observed, less than 10% cross-reactivity with recombinant mouse (rm) IL-23 heterodimer is observed, and no cross-reactivity with recombinant feline IL-23 p19, recombinant canine (rca) IL-23 p19, and recombinant rat IL-23 p19 is observed. In Western blots, no cross-reactivity with rcaIL-23 p19 or rmIL-23 p19 is observed.

Clonality

Monoclonal

Host

Mouse

Isotype

IgG_2B

Scientific Data Images for Human IL‑23 p19 PE‑conjugated Antibody

Detection of IL‑23 in Human PBMCs by Flow Cytometry.

Human peripheral blood mononuclear cells (PBMCs), (A) treated with LPS, or (B) resting, were stained with Mouse Anti-Human IL-23 p19 PE-conjugated Monoclonal Antibody (Catalog # IC17161P) and Mouse Anti-Human CD14 APC-conjugated Monoclonal Antibody (Catalog # FAB3832A). Quadrant markers were set based on control antibody staining (Catalog # IC0041P). To facilitate intracellular staining, cells were fixed with Flow Cytometry Fixation Buffer (Catalog # FC004) and permeabilized with Flow Cytometry Permeabilization/Wash Buffer I (Catalog # FC005). View our protocol for Staining Intracellular Molecules.

Applications for Human IL‑23 p19 PE‑conjugated Antibody

Application

Recommended Usage

Intracellular Staining by Flow Cytometry

10 µL/10⁶ cells
Sample: Human peripheral blood mononuclear cells (PBMCs) treated with LPS

Spectra Viewer

Plan Your Experiments

Use our spectra viewer to interactively plan your experiments, assessing multiplexing options. View the excitation and emission spectra for our fluorescent dye range and other commonly used dyes.

Spectra Viewer

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Advanced Features

Spectra Viewer - Custom analysis of spectra from multiple fluorochromes
Spillover Popups - Visualize the spectra of individual fluorochromes
Antigen Density Selector - Match fluorochrome brightness with antigen density

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Formulation, Preparation, and Storage

Purification

Protein A or G purified from hybridoma culture supernatant

Formulation

Supplied in a saline solution containing BSA and Sodium Azide.

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. Protect from light.

Background: IL-23

Interleukin 23 (IL-23) is a heterodimeric cytokine composed of two disulfide-linked subunits, a p19 subunit that is unique to IL-23, and a p40 subunit that is shared with IL-12 (1‑5). The p19 subunit has homology to the p35 subunit of IL-12, as well as to other single chain cytokines such as IL-6 and IL-11. The p40 subunit is homologous to the extracellular domains of the hematopoietic cytokine receptors. Human and mouse p19 share 70% aa sequence identity. Although p19 is expressed by activated macrophages, dendritic cells, T cells, and endothelial cells, only activated macrophages and dendritic cells express p40 concurrently to produce IL-23. The functional IL-23 receptor complex consists of two receptor subunits, the IL-12 receptor beta 1 subunit (IL-12 R beta 1) and the IL-23-specific receptor subunit (IL-23 R). IL-23 has biological activities that are similar to, but distinct from IL-12. Both IL-12 and IL-23 induce proliferation and IFN-gamma production by human T cells. While IL-12 acts on both naïve and memory human T cells, the effects of IL-23 is restricted to memory T cells. In mouse, IL-23 but not IL-12, has also been shown to induce memory T cells to secret IL-17, a potent proinflammatory cytokine. IL-12 and IL-23 can induce IL-12 production from mouse splenic DC of both the CD8^- and CD8⁺ subtypes, however only IL-23 can act directly on CD8⁺ DC to mediate immunogenic presentation of poorly immunogenic tumor/self peptide.