Recombinant Porcine IL-12 Protein

Formulations:
Catalog # Availability Size / Price Qty
912-PL-025
Product Details
Citations (5)
FAQs
Reviews

Recombinant Porcine IL-12 Protein Summary

Purity
>95%, by SDS-PAGE under reducing conditions and visualized by silver stain
Endotoxin Level
<0.10 EU per 1 μg of the protein by the LAL method.
Activity
Measured in a cell proliferation assay using PHA-stimulated human T lymphoblasts. Symons, J.A. et al. (1987) in Lymphokines and Interferons, a Practical Approach. Clemens, M.J. et al. (eds): IRL Press. 272. The ED50 for this effect is 0.05‑0.15 ng/mL.
Source
Chinese Hamster Ovary cell line, CHO-derived porcine IL-12 protein
Porcine IL-12 p40
(Ile23 - Asn324)
Accession # Q28938
Porcine IL-12 p35
(Arg26 - Ser222)
Accession # Q29053
N-terminus C-terminus
N-terminal Sequence
Analysis
Ile23 (p40) & Arg26 (p35)
Structure / Form
Disulfide-linked heterodimer
SDS-PAGE
60-70 kDa, non-reducing conditions

Product Datasheets

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.

912-PL

Formulation Lyophilized from a 0.2 μm filtered solution in PBS with BSA as a carrier protein.
Reconstitution Reconstitute at 25 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.

912-PL/CF

Formulation Lyophilized from a 0.2 μm filtered solution in PBS.
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-12

Interleukin 12, also known as natural killer cell stimulatory factor (NKSF) or cytotoxic lymphocyte maturation factor (CLMF), is a heterodimeric pleiotropic cytokine made up of a 40 kDa (p40) subunit and a 35 kDa (p35) subunit. IL-12 is produced by macrophages and B lymphocytes and has been shown to have multiple effects on T cells and natural killer (NK) cells. Some of these IL-12 activities include the induction of IFN-gamma and TNF in resting and activated T and NK cells, the enhancement of cytotoxic activity of resting NK and T cells, the stimulation of resting T cell proliferation in the presence of a comitogen, and the enhancement of NK cell proliferation. Current evidence indicates that IL-12 is a key mediator of cellular-immunity and induces the differentiation of Th1 cells from precursor T helper cells. Based on its activities, it has been suggested that IL-12 may have therapeutic potential as a vaccine adjuvant that promotes cellular-immunity and as an anti-tumor and anti-viral agent.

Porcine IL-12 subunits p35 and p40 share about 85% homology to the human subunits, but differ by containing a 3 aa addition in the p35 subunit and a 4 aa deletion in the p40 subunit. Porcine IL-12 induces proliferation of human lymphoblasts and IFN-gamma secretion by human and porcine lymph nodes. Porcine IL-12 has been detected in lymphoid tissues including inguinal and mesenteric lymph nodes, Peyer's patches, spleen and thymus.

References
  1. Foss, D. et al. (1997) Vet. Immunol. Immunopathol. 57:121.
Long Name
Interleukin 12
Entrez Gene IDs
3592 (Human); 16159 (Mouse); 84405 (Rat); 403977 (Canine); 102115316 (Cynomolgus Monkey); 493741 (Feline); 703205 (Rhesus Macaque)
Alternate Names
CLMF p35; CLMF1; Cytotoxic lymphocyte maturation factor 35 kDa subunit; IL-12 subunit p35; IL12; IL-12; IL-12, subunit p35; IL12A; interleukin 12, p35; interleukin 12A (natural killer cell stimulatory factor 1, cytotoxic lymphocytematuration factor 1, p35); interleukin-12 alpha chain; interleukin-12 subunit alpha; natural killer cell stimulatory factor 1, 35 kD subunit; NF cell stimulatory factor chain 1; NK cell stimulatory factor chain 1; NKSF1; p35

Citations for Recombinant Porcine IL-12 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.

5 Citations: Showing 1 - 5
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  1. Protective Role of Passively Transferred Maternal Cytokines against Bordetella pertussis Infection in Newborn Piglets
    Authors: S Elahi, DR Thompson, J Van Kessel, LA Babiuk, V Gerdts
    Infect. Immun., 2017;85(4):.
    Species: Porcine
    Sample Types: Serum
    Applications: ELISA (Standard)
  2. Porcine CD8alphadim/-NKp46high NK cells are in a highly activated state.
    Authors: Mair K, Mullebner A, Essler S, Duvigneau J, Storset A, Saalmuller A, Gerner W
    Vet Res, 2013;44(0):13.
    Species: Porcine
    Sample Types: Whole Cells
    Applications: Bioassay
  3. NKp46 expression discriminates porcine NK cells with different functional properties.
    Authors: Mair KH, Essler SE, Patzl M, Storset AK, Saalmuller A, Gerner W
    Eur. J. Immunol., 2012;42(5):1261-71.
    Species: Porcine
    Sample Types: Whole Cells
    Applications: Bioassay
  4. Activation of Porcine Natural Killer (NK) Cells and Lysis of Foot-and-Mouth Disease Virus (FMDV) Infected Cells.
    Authors: Toka FN, Nfon CK, Dawson H, Mark Estes D, Golde WT
    J. Interferon Cytokine Res., 2009;0(0):.
    Species: Porcine
    Sample Types: Whole Cells
    Applications: Bioassay
  5. Cytokine responses in gnotobiotic pigs after infection with virulent or attenuated human rotavirus.
    Authors: Azevedo MS, Yuan L, Pouly S, Gonzales AM, Jeong KI, Nguyen TV, Saif LJ
    J. Virol., 2006;80(1):372-82.
    Species: N/A
    Sample Types: N/A
    Applications: ELISA (Standard)

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