Human IL-12/IL-23 p40 MAb (Clone 169516) Summary
Ile23-Ser328
Accession # P29460
Applications
Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.
Reconstitution Calculator
Preparation and Storage
- 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.
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 is produced by macrophages and B lymphocytes and has multiple effects on T-cells and NK cells, including stimulation of cytotoxic activity, proliferation, and promotion of Th1 development as well as IFN-gamma and TNF production. IL-12 is a disulfide-linked, 70 kDa (p70) heterodimeric glycoprotein composed of a 40 kDA (p40) subunit and a 35 kDa (p35) subunit. The p40 and p35 subunits by themselves have no IL-12 activity, the p40 dimer has been shown to bind the IL-12 receptor and to be an IL-12 antagonist. Free p35 has not been detected in supernatant solutions of cultured cells expressing only p35 or both p35 and p40 mRNAs. In contrast, p40 is secreted in excess of IL-12 in cells expressing both p35 and p40 mRNAs. The p40 subunit of IL-12 has been shown to have extensive amino acid sequence homology to the extracellular domain of the human IL-6 receptor while the p35 subunit shows distant but significant sequence similarity to IL-6, G-CSF, and chicken MGF. These observations have led to the suggestion that IL-12 might have evolved from a cytokine/soluble receptor complex. Human and mouse IL-12 share 70% and 60% amino acid sequence homology in their p40 and p35 subunits, respectively. IL-12 apparently shows species specificity with human IL-12 reportedly showing minimal activity in the murine system.
Product Datasheets
Citations for Human IL-12/IL-23 p40 MAb (Clone 169516)
R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.
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Integration of phage and yeast display platforms: A reliable and cost effective approach for binning of peptides as displayed on-phage
Authors: P Pandya, RO Sayers, JP Ting, S Morshedian, C Torres, JS Cudal, K Zhang, JR Fitchett, Q Zhang, FF Zhang, J Wang, JD Durbin, JJ Carrillo, A Espada, H Broughton, Y Qian, S Afshar
PLoS ONE, 2020-06-01;15(6):e0233961.
Species: Yeast
Sample Types: Whole Cells
Applications: Flow Cytometry -
A naturally occurring, soluble antagonist of human IL-23 inhibits the development and in vitro function of human Th17 cells.
Authors: Yu RY, Gallagher G
J. Immunol., 2010-11-12;185(12):7302-8.
Species: Human
Sample Types: Recombinant Protein
Applications: Western Blot -
IL-23 is increased in dendritic cells in multiple sclerosis and down-regulation of IL-23 by antisense oligos increases dendritic cell IL-10 production.
Authors: Vaknin-Dembinsky A, Balashov K, Weiner HL
J. Immunol., 2006-06-15;176(12):7768-74.
Species: Human
Sample Types: Cell Culture Supernates
Applications: ELISA Development
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