Recombinant Human Interleukin-15/IL-15 Protein

SKU: PKSH033630

Size: 100μg

Storage: Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80℃. Reconstituted protein solution can be stored at 4-8℃ for 2-7 days. Aliquots of reconstituted samples are stable at < -20℃ for 3 months.

Shipping: This product is provided as lyophilized powder which is shipped with ice packs.

Exp date: 12 months

Category ID_II: Recombinant Proteins

Category ID_III: Cytokines

Abbreviation: Interleukin-15;IL-15

Target Synonym: IL-15;Interleukin 15;Interleukin-15;IL15

Research Areas: Cancer;immunology;metabolism

Conjugation:

Target Species: Human

Expression Host: E.coli

Application: Cell culture

Fusion tag: N-His

UNIProt ID: P40933

Accession: P40933

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.

Concentration:

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.

Sequence: Asn49-Ser162

Purity: > 95 % as determined by reducing SDS-PAGE.

Formulation: Lyophilized from sterile PBS,pH 8.0.
Normally 5% - 8% trehalose, mannitol and 0.01% Tween 80 are added as protectants before lyophilization.
Please refer to the specific buffer information in the printed manual.

Reconstitution: Please refer to the printed manual for detailed information.

Endotoxin: < 0.01 EU per μg of the protein as determined by the LAL method.

Calculated MW: 13.7 kDa

ObservedMW: 13 kDa