Description
Product Description
Interleukin-12 (IL-12) is a cytokine that has regulatory effects on T and natural killer (NK) cells and is composed of two disulfide-bonded subunits, p40 and p35. It is a heterodimeric cytokine produced by macrophages, mitogen stimulated- or EBV infected-B lymphocytes, keratinocytes, and probably dendritic cells, with important immunoregulatory functions in vitro and in vivo. In its role as the initiator of cell-mediated immunity, it has been suggested that IL-12 has therapeutic potential as a stimulator of cell-mediated immune responses to microbial pathogens, metastatic cancers, and viral infections such as AIDS. Importantly, IL-12 also inhibited secondary granuloma formation in mice presensitized with eggs demonstrating a role for the cytokine in reversing established Th2-type responses.
Product Properties
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Synonyms |
Interleukin-12, IL-12, NKSF2, CLMF p40 |
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Accession |
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GeneID |
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Source |
Sf21-derived human IL-12 protein. |
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Molecular Weight |
Approximately 41 kDa and 29 kDa under reducing conditions. |
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AA Sequence |
HuIL-12 p40: Ile23 - Ser328; Accession # P29460 |
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Tag |
None |
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Physical Appearance |
Sterile Filtered White lyophilized (freeze-dried) powder. |
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Purity |
> 97 % by SDS-PAGE. |
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Biological Activity |
Measured in a cell proliferation assay using PHA-stimulated human T lymphoblasts. The ED50 for this effect is 0.01-0.05 ng/mL. The specific activity of rH IL-12 is approximately 1.1 × 104 units/μg, which is calibrated against rHuIL-12 WHO Standard (NIBSC code: 95/544). |
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Endotoxin |
< 1.0 EU per 1μg of the protein by the LAL method. |
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Formulation |
Lyophilized from a 0.2 μm filtered concentrated solution in PBS, pH 7.2. |
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Reconstitution |
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in sterile PBS to a concentration of 0.1 mg/mL. Stock solutions should be apportioned into working aliquots and stored at ≤ -20℃. Further dilutions should be made in appropriately buffered solutions. |
Shipping and Storage
The products are shipped with ice pack and can be stored at -20℃ to -80℃ for 1 year.
Recommend to aliquot the protein into smaller quantities when first used and avoid repeated freeze-thaw cycles.
Cautions
1. Avoid repeated freeze-thaw cycles.
2. For your safety and health, please wear lab coats and disposable gloves for operation.
3. For research use only!
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The product is for research purposes only and is not intended for therapeutic or diagnostic use in humans or animals. Products and content are protected by patents, trademarks, and copyrights owned by Yeasen Biotechnology. Trademark symbols indicate the country of origin, not necessarily registration in all regions.
Certain applications may require additional third-party intellectual property rights.
Yeasen is dedicated to ethical science, believing our research should address critical questions while ensuring safety and ethical standards.
