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IL15 recombinant protein :: Interleukin-15 Recombinant Protein

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Catalog # MBS203120
Unit / Price
  0.1 mg  /  $375 +1 FREE 8GB USB
  0.5 mg  /  $925 +1 FREE 8GB USB
Product Name

Interleukin-15 (IL15), Recombinant Protein

Also Known As

Interleukin-15, 49-162aa, Human, His tag, E Coli (Bioactivity Validated)

Product Synonym Names
IL-15; Interleukin-15; IL15
Research Use Only
For Research Use Only. Not for use in diagnostic procedures.
Sequence Length
U14407 mRNA
E Coli
> 95% by SDS-PAGE
Liquid. In phosphate buffered saline (pH 7.4) containing 10% glycerol
1 mg/ml (determined by Bradford assay) (lot specific)
Antigen Species
Tag Information
Endotoxin Level
< 1.0 EU per 1 microgram of protein (determined by LAL method)
Biological Activity
Measured in a cell proliferation assay using CTLL2 mouse cytotoxic T cells. The ED50 for this effect is < 2.5 ng/ml.
Preparation and Storage
Can be stored at 4 degree C short term (1-2 weeks).
For long term storage, aliquot and store at -20 degree C or -70 degree C.
Avoid repeated freezing and thawing cycles.
Other Notes
Small volumes of IL15 recombinant protein vial(s) may occasionally become entrapped in the seal of the product vial during shipment and storage. If necessary, briefly centrifuge the vial on a tabletop centrifuge to dislodge any liquid in the container`s cap. Certain products may require to ship with dry ice and additional dry ice fee may apply.
Related Product Information for
IL15 recombinant protein
Interleukin (IL)-15 is a pleiotropic cytokine that plays a pivotal role in both innate and adaptive immunity. IL-15 is unique among cytokines due to its participation in a trans signaling mechanism in which IL-15 receptor alpha (IL-15R alpha) from one subset of cells presents IL-15 to neighboring IL-2R beta/gamma (c)-expressing cells. This newly discovered cytokine is produced by a wide variety of cells and tissues and like IL-2, stimulates the proliferation of T-lymphocytes and induces the generation of cytotoxic T-lymphocytes (CTLs) and lymphokine-activated killer (LAK) cells. Recombinant human IL-15 was expressed in E Coli and purified by using conventional chromatography after refolding of the isolated inclusion bodies in a redox buffer.
Product Categories/Family for IL15 recombinant protein
Applications Tested/Suitable for IL15 recombinant protein

NCBI/Uniprot data below describe general gene information for IL15. It may not necessarily be applicable to this product.
NCBI Accession #
NCBI GenBank Nucleotide #
UniProt Secondary Accession #
UniProt Related Accession #
Molecular Weight
13.9kDa (123aa), confirmed by MALDI-TOF. [Similar Products]
NCBI Official Synonym Full Names
interleukin 15
NCBI Official Symbol
NCBI Official Synonym Symbols
  [Similar Products]
NCBI Protein Information
UniProt Protein Name
Protein Family
UniProt Gene Name
UniProt Synonym Gene Names
IL-15  [Similar Products]
NCBI Summary for IL15
The protein encoded by this gene is a cytokine that regulates T and natural killer cell activation and proliferation. This cytokine and interleukine 2 share many biological activities. They are found to bind common hematopoietin receptor subunits, and may compete for the same receptor, and thus negatively regulate each other's activity. The number of CD8+ memory cells is shown to be controlled by a balance between this cytokine and IL2. This cytokine induces the activation of JAK kinases, as well as the phosphorylation and activation of transcription activators STAT3, STAT5, and STAT6. Studies of the mouse counterpart suggested that this cytokine may increase the expression of apoptosis inhibitor BCL2L1/BCL-x(L), possibly through the transcription activation activity of STAT6, and thus prevent apoptosis. Alternatively spliced transcript variants of this gene have been reported. [provided by RefSeq, Feb 2011]
UniProt Comments for IL15
Cytokine that stimulates the proliferation of T-lymphocytes. Stimulation by IL-15 requires interaction of IL-15 with components of IL-2R, including IL-2R beta and probably IL-2R gamma but not IL-2R alpha.
Product References and Citations for IL15 recombinant protein
J G Giri., et al. (1994) EMBO. 13 (12): 2822-2830.; Lorenzen I., et al. (2006). J Biol Chem. 281 (10):6642-7.;

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While every efforts were made to ensure the accuracy of the information provided in this datasheet, MyBioSource will not be liable for any omissions or errors contained herein. MyBioSource reserves the right to make changes to this datasheet at any time without prior notice.

It is the responsibility of the customer to report product performance issues to MyBioSource within 30 days of receipt of the product. Please visit our Terms & Conditions page for more information.
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