IL12B Protein, Mouse, Recombinant (His Tag)

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IL12B Protein, Mouse, Recombinant (His Tag): Product Information

Purity
> 95 % as determined by SDS-PAGE
Endotoxin
< 1.0 EU per μg of the protein as determined by the LAL method
Activity
Measured by its ability to inhibit IL-23 induced IL-17 secretion by mouse splenocytes. The ED50 for this effect is typically 3-20ng/mL.
Protein Construction
A DNA sequence encoding the mouse IL12B (Met1-Ser335) was expressed with a C-terminal polyhistidine tag.
Accession#
Expressed Host
HEK293 Cells
Species
Mouse
Predicted N Terminal
Met 23
Molecule Mass
The recombinant mouse IL12B comprises 324 amino acids and has a predicted molecular mass of 37.2 kDa. The apparent molecular mass of the protein is approximately 47-51 kDa in SDS-PAGE under reducing conditions due to glycosylation.
Formulation
Lyophilized from sterile PBS, pH 7.4
Please contact us for any concerns or special requirements.
Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization.
Please refer to the specific buffer information in the hard copy of CoA.
Shipping
In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.
Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.
Stability & Storage
Samples are stable for up to twelve months from date of receipt at -20℃ to -80℃
Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
Reconstitution
A hardcopy of COA with reconstitution instruction is sent along with the products. Please refer to it for detailed information.

IL12B Protein, Mouse, Recombinant (His Tag): Images

Measured by its ability to inhibit IL-23 induced IL-17 secretion by mouse splenocytes. The ED50 for this effect is typically 3-20ng/mL.

IL12B Protein, Mouse, Recombinant (His Tag): Synonyms

Il-12b Protein, Mouse; Il-12p40 Protein, Mouse; Il12p40 Protein, Mouse; p40 Protein, Mouse

IL12B Background Information

Subunit beta of interleukin 12 (also known as natural killer cell stimulatory factor 2, or cytotoxic lymphocyte maturation factor 2, p4) (IL12B) is a subunit of human interleukin 12. IL12B/IL-12B is a cytokine that acts on T and natural killer cells, and has a broad array of biological activities. Interleukin 12 is a disulfide-linked heterodimer composed of the 4 kD cytokine receptor like subunit encoded by this gene, and a 35 kD subunit encoded by IL12A. IL12B/IL-12B is expressed by activated macrophages that serve as an essential inducer of Th1 cells development. This cytokine has been found to be important for sustaining a sufficient number of memory/effector Th1 cells to mediate long-term protection to an intracellular pathogen. Overexpression of this gene was observed in the central nervous system of patients with multiple sclerosis (MS), suggesting a role of this cytokine in the pathogenesis of the disease. The promoter polymorphism of this gene has been reported to be associated with the severity of atopic and non-atopic asthma in children. IL12B/IL-12B associates with IL23A to form the IL-23 interleukin, an heterodimeric cytokine which functions in innate and adaptive immunity.
Full Name
interleukin 12B
Related Pathways
  • IL12 signaling pathway
    IL12 signaling pathway
References
  • Taoufik Y, et al. (1997) Human immunodeficiency virus gp120 inhibits interleukin-12 secretion by human monocytes: an indirect interleukin-10-mediated effect. Blood. 89 (8): 2842-8.
  • Fantuzzi L, et al. (1996) Induction of interleukin-12 (IL-12) by recombinant glycoprotein gp120 of human immunodeficiency virus type 1 in human monocytes/macrophages: requirement of gamma interferon for IL-12 secretion. J Virol. 70 (6): 4121-4.
  • Aragane Y, et al. (1995) IL-12 is expressed and released by human keratinocytes and epidermoid carcinoma cell lines. J Immunol. 153 (12): 5366-72.
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