Recombinant Rat IL-23 Protein

Carrier Free

Catalog # Availability Size / Price Qty
3136-RL-010/CF
3136-RL-01M/CF

With Carrier

Catalog # Availability Size / Price Qty
3136-RL-010
R&D Systems Recombinant Proteins and Enzymes
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Citations (2)
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Recombinant Rat IL-23 Protein Summary

Product Specifications

Purity
>95%, by SDS-PAGE under reducing conditions and visualized by silver stain
Endotoxin Level
<0.01 EU per 1 μg of the protein by the LAL method.
Activity
Measured by its ability to induce IL-17 secretion by mouse splenocytes. Aggarwal, S. et al. (2003) J. Biol. Chem. 278:1910. The ED50 for this effect is 0.1-0.5 ng/mL.
Source
Spodoptera frugiperda, Sf 21 (baculovirus)-derived rat IL-23 protein
Rat IL-23 p40
(Met23 - Ser335)
Accession # NP_072133
IGSGSSRGGSGSGGSGGGGSK Rat IL-23 p19
(Leu20 - Ala196)
Accession # NP_569094
8-His tag
N-terminus C-terminus
N-terminal Sequence
Analysis
Met23
Predicted Molecular Mass
58.3 kDa
SDS-PAGE
66 kDa, reducing conditions

Product Datasheets

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3136-RL (with carrier)

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3136-RL/CF (carrier free)

Carrier Free

What does CF mean?

CF stands for Carrier Free (CF). We typically add Bovine Serum Albumin (BSA) as a carrier protein to our recombinant proteins. Adding a carrier protein enhances protein stability, increases shelf-life, and allows the recombinant protein to be stored at a more dilute concentration. The carrier free version does not contain BSA.

What formulation is right for me?

In general, we advise purchasing the recombinant protein with BSA for use in cell or tissue culture, or as an ELISA standard. In contrast, the carrier free protein is recommended for applications, in which the presence of BSA could interfere.

3136-RL

Formulation Lyophilized from a 0.2 μm filtered solution in Tris-Citrate and NaCl with BSA as a carrier protein.
Reconstitution Reconstitute at 10 μg/mL in sterile PBS containing at least 0.1% human or bovine serum albumin.
Shipping The product is shipped at ambient temperature. Upon receipt, store it 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.
  • 3 months, -20 to -70 °C under sterile conditions after reconstitution.

3136-RL/CF

Formulation Lyophilized from a 0.2 μm filtered solution in Tris-Citrate and NaCl.
Reconstitution Reconstitute at 100 μg/mL in sterile PBS.
Shipping The product is shipped at ambient temperature. Upon receipt, store it 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.
  • 3 months, -20 to -70 °C under sterile conditions after reconstitution.
Reconstitution Calculator

Reconstitution Calculator

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.

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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. The rat p19 cDNA encodes a 196 amino acid (aa) residue precursor protein with a putative 19 aa signal peptide and 177 aa mature protein. The mature rat p19 protein shares 88%, 78%, 76%, 75%, 71%, and 70% aa sequence identity with mouse, human, canine, equine, guinea pig, and bovine, respectively. Activated macrophages and dendritic cells express p19 and p40 concurrently to produce IL-23 (1, 4). The functional IL-23 receptor complex consists of two receptor subunits, the IL-12 receptor beta 1 subunit (IL-12R beta 1) and the IL-23-specific receptor subunit (IL-23R) (3). IL-23 and IL-12 have overlapping but distinct biological activities. IL-12 drives development of Th1 cells and induces production of IFN-gamma by NK cells; IL-23 induces proliferation of Th17 cells and CD4+ memory T cells distinct from Th1 which produce IL-17, a potent proinflammatory cytokine (2). IL-23 also drives IL-17 production by NK cells and neutrophils (6). While both IL-12 and IL-23 pathways respond to infectious agents, the IL-23 - IL-17 immune pathway induces the earliest recruitment of neutrophils to the site of infection while the more classic host defense and cytotoxic response is stimulated by IL-12 (5). Dysregulation of the IL-23 - IL-17 immune pathway has a key role in organ-specific autoimmune inflammatory tissue destruction (2, 7).

References
  1. Oppmann, B. et al. (2000) Immunity 13:715.
  2. McKenzie, B.S. et al. (2006) Trends Immunol. 27:17.
  3. Parham, C. et al. (2002) J. Immunol. 168:5699.
  4. Cua, D.J. et al. (2003) Nature 421:744.
  5. Aggarwal, S. et al. (2003) J. Biol. Chem. 278:1910.
  6. Langrish, C.L. et al. (2004) Immunol. Rev. 202:96.
  7. Murphy, C.A. et al. (2003) J. Exp. Med. 198:1951.
Long Name
Interleukin 23
Entrez Gene IDs
51561 (Human); 83430 (Mouse); 155140 (Rat); 102128555 (Cynomolgus Monkey)
Alternate Names
IL-23 p19/IL-12 p40; IL23; IL-23; IL-23A; IL-23-A; IL-23p19; IL-23p19/IL-12p40; IL23P19P19; interleukin 23 p19 subunit; interleukin 23, alpha subunit p19; interleukin-23 subunit alpha; Interleukin-23 subunit p19; JKA3 induced upon T-cell activation; MGC79388; SGRF; SGRFIL-23 subunit alpha

Citations for Recombinant Rat IL-23 Protein

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.

2 Citations: Showing 1 - 2
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  1. Activated pathogenic Th17 lymphocytes induce hypertension following high-fructose intake in Dahl salt-sensitive (SS) but not Dahl salt-resistant (SR) rats
    Authors: E Lee, N Kim, J Kang, S Yoon, HA Lee, H Jung, SH Kim, I Kim
    Dis Model Mech, 2020-05-27;0(0):.
    Species: Rat
    Sample Types: In Vivo
    Applications: In Vivo
  2. Resident Vdelta1+ gammadelta T cells control early infiltration of neutrophils after Escherichia coli infection via IL-17 production.
    Authors: Shibata K, Yamada H, Hara H, Kishihara K, Yoshikai Y
    J. Immunol., 2007-04-01;178(7):4466-72.
    Species: Mouse
    Sample Types: Whole Cells
    Applications: Bioassay

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