Recombinant Human IL-15

CAT: 0855-EPT012Size: 50 µgDry Ice: NoHazardous: No
CAT#:0855-EPT012Size:50 µg
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AVAILABILITY: InStock
24/48H Stock Items & 2 to 6 Weeks non Stock Items.
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Background
Human Interleukin 15 (IL-15) is a cytokine that regulates T cell and natural killer cell activation and proliferation. IL-15 binds to the alpha subunit of the IL15 receptor (IL-15RA) with high affinity. IL-15 also binds to the beta and gamma chains of the IL-2 receptor, but not the alpha subunit of the IL2 receptor. IL-15 is structurally and functionally related to IL-2. Both cytokines share some subunits of receptors, allowing them to compete for and negatively regulate each other's activity. The number of CD8+ memory T cells is controlled by a balance between IL-15 and IL-2. Despite their many overlapping functional properties, IL-2 and IL-15 are, in fact, quite distinct players in the immune system. IL-15 is constitutively expressed by a wide variety of cell types and tissues, including monocytes, macrophages and DCs. Mature Human IL-15 shares 70% amino acid sequence identity with Mouse and Rat IL-15.
Description
Recombinant Human Interleukin-15 is produced by our E.coli expression system and the target gene encoding Asn49-Ser162 is expressed.
UniProt
P40933
Accession Number
P40933
Endotoxin
Less than 0.001 ng/μg (0.01 EU/μg) as determined by LAL test.
Purity
Greater than 95% as determined by reducing SDS-PAGE.
Bioactivity
Measured in a cell proliferation assay using CTLL-2 mouse cytotoxic T cells. The ED50 for this effect is 40-200pg/ml.
Molecular Weight
12.5 KDa
Shipping Conditions
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature listed below.
Storage Conditions
Lyophilized protein should be stored at < -20°C, though stable at room temperature for 3 weeks. Reconstituted protein solution can be stored at 4-7°C for 2-7 days. Aliquots of reconstituted samples are stable at < -20°C for 3 months.
Storage Temperature
Lyophilized protein should be stored at < -20°C, though stable at room temperature for 3 weeks. Reconstituted protein solution can be stored at 4-7°C for 2-7 days. Aliquots of reconstituted samples are stable at < -20°C for 3 months.
Notes
Always centrifuge tubes before opening.Do not mix by vortex or pipetting. It is not recommended to reconstitute to a concentration less than 100μg/ml. Dissolve the lyophilized protein in distilled water. Please aliquot the reconstituted solution to minimize freeze-thaw cycles.
Observed Molecular Weight
12 KDa, reducing conditions
Other Product Names
Interleukin-15; IL-15; IL15