Invitrogen™ IL-23 p19 Monoclonal Antibody (fc23cpg), eFluor™ 660, eBioscience™, Invitrogen™

Catalog No.	Quantity
50-164-61	25 μg
50-112-8877	100 μg

Catalog No. 50-164-61 Supplier Invitrogen™ Supplier No. 50702380

Description

Rat Monoclonal Antibody

Description: This fc23cpg monoclonal antibody reacts with the p19 subunit of mouse IL-23, a heterodimeric cytokine made up of two disulfide-linked subunits, p40 and p19. It is closely related to IL-12, with which it shares the p40 subunit. IL-23 signals through a heterodimeric receptor expressed on activated T cells, macrophages, and dendritic cells. The receptor shares the IL-12Rbeta1 chain with IL-12, while the IL-23R chain is unique to the IL-23 receptor complex. Binding of IL-23 to its receptor activates Jak/STAT pathways similarly to IL-12, but the two cytokines exhibit distinct functions. Unlike IL-12, which induces T-bet and Th1 differentiation, IL-23 signaling results in RORgammat expression and supports CD4^+ T cells with the Th17 phenotype Dendritic cells and macrophages produce IL-23 in response to TLR2, TLR4, and TLR8 ligands, as well as agonists of the beta-glucan receptor, Dectin-1. Our studies suggest donor, kinetics and type of stimulant can result in variation in IL-23 expression levels. Recent publications suggest the p19 subunit may also exist in the absence of association with p40. Applications Reported: This fc23cpg antibody has been reported for use by intracellular staining and flow cytometric analysis. Applications Tested: This fc23cpg antibody has been tested by intracellular staining and flow cytometric analysis. This can be used at less than or equal to 0.06 μg per test.

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.

Specifications

• Antigen: IL-23 p19
• Applications: Flow Cytometry
• Classification: Monoclonal
• Clone: fc23cpg
• Concentration: 0.2 mg/mL
• Conjugate: eFluor 660
• Formulation: PBS with 0.09% sodium azide; pH 7.2
• Gene: IL23A
• Gene Accession No.: Q9EQ14
• Gene Alias: il 23; IL 23 A; IL12B; Il-12b; Il12p40; Il-12p40; il23; IL-23; IL-23 subunit alpha; IL23A; IL-23A; IL-23-A; IL23P19; IL-23p19; ILN; Interleukin; interleukin 12B; interleukin 23 p19 subunit; interleukin 23 subunit alpha; 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; P19; p40; RP23-388G23.1; SGRF; UNQ2498/PRO5798
• Gene Symbols: IL23A
• Host Species: Rat
• Immunogen: mouse IL-23p19 subunit.
• Purification Method: Affinity chromatography
• Quantity: 25 μg
• Regulatory Status: RUO
• Primary or Secondary: Primary
• Gene ID (Entrez): 83430
• Target Species: Mouse
• Content And Storage: 4°C, store in dark, DO NOT FREEZE!
• Product Type: Antibody
• Form: Liquid
• Isotype: IgG1 κ

Frequently Asked Questions (FAQs)

I am unable to analyze my cells stained with eFluor Organic Dyes today. What options do I have?

Our options will depend on the samples you are analyzing.

If cell viability is not critical, you can store your stained samples at 4 degrees C or on ice overnight in the dark and analyze the following day.

For samples stained with eFluor organic fluorochromes, we recommend that cells be suspended in 100 uL of Flow Cytometry Staining Buffer (Cat. No. 00-4222) and 100 uL of eBioscience IC Fixation Buffer (Cat. No. 00-8222); samples can be incubated for up to 3 days at 4 degrees C in the dark. Alternatively, the 1-step Fix/Lyse Solution (Cat. No. 00-5333) can be used. This is a great option when working with whole blood but also works for other cell types.

Can the eFluor Organic fluorochromes be used for intracellular staining?

Yes, the eFluor Organic fluorochromes can be used for intracellular staining. The eFluor organic fluorochromes maintain bright signal and require minimal changes in compensation when fixed with eBioscience IC Fixation Buffer (Cat. No. 00-8222-49) and Permeabilization Buffer (Cat. No. 00-8333-56) or 1-step Fix/Lyse Solution (Cat. No. 00-5333-54, 00-5333-57) (as compared to live cells).

Is the eFluor 660 fluorochrome compatible with Anti-Cy5/Alexa Fluor 647 beads?

Yes, in-house studies have demonstrated that the eFluor 660 fluorochrome is recognized by Anti-Cy5/Alexa Fluor 647 beads. Side by side studies with Alexa Fluor 647 versus eFluor 660 conjugated antibodies have demonstrated comparable results.

What buffers are compatible with the eFluor Organic fluorochromes and eVolve QDots?

The eFluor Organic fluorochromes and eVolve QDots can be used with flow staining buffers containing PBS and protein.

What is the difference between eFluor Organic Dyes and eVolve Qdots?

The eFluor Organic Dyes (eFluor 450, APC-eFluor 780, PerCP-eFluor 710, eFluor 710) are conventional fluorochromes. In contrast, the eVolve line of products are Quantum dots.

Are the eFluor Organic Dyes photo-labile?

As with other fluorochromes, we recommend minimal exposure to light to maintain optimal signal.

Safety and Handling

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

For Research Use Only.