Human/Feline IL‑23 p19 Antibody

Name: Human/Feline IL‑23 p19 Antibody
Brand: R&D Systems
SKU: AF6238
Price: 419 USD
Availability: InStock

R&D Systems | Catalog # AF6238

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Product Specifications
Scientific Data
Applications
Preparation & Storage
Calculators
Background
Product Documents
Specific Notices
Research Areas

Key Product Details

Species Reactivity

Human, Feline

Applications

Western Blot

Label

Unconjugated

Antibody Source

Polyclonal Sheep IgG

View all IL-23 Primary Antibodies »

Product Specifications

Immunogen

E. coli-derived recombinant feline IL-23 p19
Arg26-Arg185
Accession # ABB01676

Specificity

Detects human and feline IL-23 p19 in direct ELISAs and Western blots. In direct ELISAs, approximately 60% cross-reactivity with recombinant canine IL-23 p19 is observed and approximately 30% cross-reactivity with recombinant mouse IL-23 p19 is observed.

Clonality

Polyclonal

Host

Sheep

Isotype

IgG

Scientific Data Images for Human/Feline IL‑23 p19 Antibody

Detection of Human IL‑23 p19 by Western Blot.

Western blot shows lysates of Hs 294T human melanoma cell line. PVDF Membrane was probed with 1 µg/mL of Feline IL-23 p19 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF6238) followed by HRP-conjugated Anti-Sheep IgG Secondary Antibody (Catalog # HAF016). A specific band was detected for IL-23 p19 at approximately 27 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 8.

Applications for Human/Feline IL‑23 p19 Antibody

Application

Recommended Usage

Western Blot

1 µg/mL
Sample: Hs 294T human melanoma cell line

Formulation, Preparation, and Storage

Purification

Antigen Affinity-purified

Reconstitution

Sterile PBS to a final concentration of 0.2 mg/mL. 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.

Volume (to add to vial)

Mass (in vial)

Desired Reconstitution Concentration

Background: IL-23

IL-23 p19 (Interleukin 23 p19; also IL-23 alpha) is an 18-20 kDa (estimated) member of the IL-6 superfamily of molecules. It is disulfide-bonded to p40 to form IL-23. IL-23 is secreted by immune-related cell types such as keratinocytes, dendritic cells, macrophages, microglia and monocytes, often following TLR stimulation. It appears to drive Th17 cell development by inhibiting T-bet and FoxP3 production, and to reduce IL-12-mediated IFN-gamma production by CD4+, CD8+ and NK cells. Based on human, mature feline IL-23 p19 is 160 amino acids (aa) in length. It is a alpha -helical molecule that utilizes Cys80 to form an interchain disulfide bond with IL-12 p40. IL-23 p19 does not appear to be released unless dimerized to p40. There are no potential N-linked glycosylation sites on p19. Mature feline IL-23 p19 (aa 26-185) shares 87% aa identity with human IL-23 p19.