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Product Info Summary
| SKU: | PROTP40933-6 |
|---|---|
| Size: | 100ug,1mg |
| Origin Species: | Human |
| Source: | Escherichia coli |
| Application: | Cell Culture, ELISA |
Product info
Product Name
Human recombinant IL-15 protein, GMP
View all IL15 recombinant proteins
SKU/Catalog Number
PROTP40933-6
Size
100ug,1mg
Tag
His Tag (N-term)
Description
Interleukin-15 (IL-15) is a 14-15 kDa glycoprotein with immune regulatory functions in many diverse cell types. IL-15 can be constitutively expressed in a variety of cell types stored as intracellular protein in the cytoplasm as well as transport to the cell surface, while only secreted from some cell types including monocytes, dendritic cells, epithelial cells, bone marrow stromal cells, and fibroblasts. As a pleiotropic cytokine, IL-15 mediates the crosstalk between innate immunity and adaptive immunity whose principal role is to kill virally infected cells. IL-15 plays a crucial role in the development, differentiation, and survival of NK cells. In monocytes, IL-15 induces the production of IL-8 and monocyte chemotactic protein 1 (MCP-1), which recruits neutrophils and monocytes to sites of infection. IL-15 can also act as a chemo-attractant in T lymphocytes and regulate the differentiation of T lymphocytes.
Storage & Handling
Lyophilized protein should be stored at -20°C for 1 year. Upon reconstitution, store at 2°C to 8°C for up to 1 week. Further dilute in a buffer containing a carrier protein or stabilizer (e.g. 0.1% BSA, 10%FBS, 5%HSA or 5% trehalose solution), protein aliquots should be stored at -20°C or -80°C for 3-6 months. Avoid repeated freeze/thaw cycles.
Cite This Product
Human recombinant IL-15 protein, GMP (Boster Biological Technology, Pleasanton CA, USA, Catalog # PROTP40933-6)
Form
Lyophilized
Formulation
Lyophilized from a 0.2 μm filtered solution of PBS, pH 8.0.
Purity
>95% as determined by SDS-PAGE analysis.
Predicted MW
18.1 kDa
Molecular weight
The protein has a calculated MW of 13.7 kDa. The protein migrates as 13 kDa under reducing condition (SDS-PAGE analysis).
Activity
Measure by its ability to induce proliferation in CTLL-2 cells. The ED₅₀ for this effect is < 3 ng/mL. The specific activity of recombinant human IL-15 is > 2 x 10⁶ IU/mg, which is calibrated against the human IL-15 WHO International Standard (NIBSC code: 95/554).
Endotoxin
<0.05 EU per 1 μg of the protein by the LAL method.
Amino Acid Sequence
NWVNVISDLKKIEDLIQSMHIDATLYTESDVHPSCKVTAMKCFLLELQVISLESGDASIHDTVENLIILANNSLSSNGNVTESGCKECEELEEKNIKEFLQSFVHIVQMFIN TSLE with polyhistidine tag at the N-terminus.
Reconstitution
Centrifuge at 3000 rpm for 5 mins before opening. It is recommended to reconstitute the lyophilized protein in sterile H₂O to a concentration not less than 0.5 mg/mL and incubate the stock solution at RT for at least 20 min to ensure sufficient re-dissolved.
Assay dilution & Images
Validation Images & Assay Conditions
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SDS- PAGE analysis of GMP human IL-15
Specific Publications For Human recombinant IL-15 protein, GMP (PROTP40933-6)
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