Mouse IL-12/IL-23 p40 Alexa Fluor™ Plus 555-conjugated Antibody
R&D Systems, part of Bio-Techne | Catalog # FAB499AFP555
Conjugate
Catalog #
Key Product Details
Species Reactivity
Mouse
Applications
ELISA Capture (Matched Antibody Pair)
Label
Alexa Fluor Plus 555 (Excitation = 558 nm, Emission = 572 nm)
Antibody Source
Monoclonal Rat IgG2B Clone # 30517
Product Specifications
Immunogen
S. frugiperda insect ovarian cell line Sf 21-derived recombinant mouse IL‑12 p40
Specificity
Detects mouse IL-12 p40 in ELISAs. Polymorphisms exist in the mouse IL-12 p40 sequence. This antibody recognizes an allelic epitope found in the p40 subunit of several mouse strains including BALB/c, C57BL/6, CBA, C3H, DBA/1, NOR, I29/J, and A.SW. This antibody does not recognize the allelic variant that occurs in strains AKR, DBA/2, NOD, NZB, NZC, NZO, NZW, or SJL (1). In ELISAs, this antibody shows 100% cross-reactivity with recombinant mouse (rm) IL-23, 30% cross-reactivity with rmIL-12 p70, and no cross-reactivity with recombinant human (rh) IL-12 p70 or rhIL-12 p40.
Clonality
Monoclonal
Host
Rat
Isotype
IgG2B
Applications
Application
Recommended Usage
ELISA Capture (Matched Antibody Pair)
Optimal dilution of this antibody should be experimentally determined.
Formulation, Preparation, and Storage
Formulation
Supplied 0.2 mg/mL 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
Protect from light. Do not freeze. 12 months from date of receipt, 2 to 8 °C as supplied
Background: IL-12/IL-23 p40
Interleukin 12, also known as natural killer cell stimulatory factor (NKSF) or cytotoxic lymphocyte maturation factor (CLMF), is a pleiotropic cytokine originally identified in the medium of activated human B lymphoblastoid cell lines. IL-12 has multiple effects on T cells and NK cells and is a key mediator in the development of Th1 cells.
IL-12 is a heterodimeric cytokine containing two disulfide-linked subunits, p35 and p40. Human and mouse IL-12 share 70% and 60% amino acid sequence identity in their p40 and p35 subunits, respectively. Although mouse IL-12 is active on human or mouse IL-12 responsive cells, human IL-12 is not active on mouse cells.
The disulfide-linked mouse p40 homodimer can bind to IL-12 receptors and is an antagonist of IL-12 activities in vitro. The mouse p40 monomer is at least ten times less active than the homodimer as an IL-12 antagonist. At the present time, the existence and the physiological role of mouse p40 homodimer in vivo remains to be determined.
References
- Ymer, S. et al. (2002) Genes and Immunity 3:151.
Long Name
Interleukin 12/Interleukin 23 p40
Alternate Names
CLMF2, IL-12B, IL12 p40, IL12B, NKSF2
Entrez Gene IDs
Gene Symbol
IL12B
Additional IL-12/IL-23 p40 Products
Product Specific Notices
This product is provided under an intellectual property license from Life Technologies Corporation. The transfer of this product is conditioned on the buyer using the purchased product solely in research conducted by the buyer, excluding contract research or any fee for service research, and the buyer must not (1) use this product or its components for (a) diagnostic, therapeutic or prophylactic purposes; (b) testing, analysis or screening services, or information in return for compensation on a per-test basis; or (c) manufacturing or quality assurance or quality control, and/or (2) sell or transfer this product or its components for resale, whether or not resold for use in research. For information on purchasing a license to this product for purposes other than as described above, contact Life Technologies Corporation, 5781 Van Allen Way, Carlsbad, CA 92008 USA or outlicensing@thermofisher.com.
For research use only
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