Active Recombinant Human IL15

• Cat.No.: IL15-25H
• Product Overview: Recombinant Human Interleukin-15/IL-15 produced in E. coli is a single non-glycosylated polypeptide chain containing 114 amino acids with a molecular mass of 12.5 kD.

Specification

• Description: 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.
• Source: E. coli
• Species: Human
• Form: Lyophilized from a 0.2 μM filtered solution of 20mM PB, 150mM NaCl, pH 7.0.
• Bio-activity: ED50 is less than 0.5 ng/ml as determined by the dose dependent stimulation of mouse CTLL-2 cell proliferation. Specific Activity of 2.0 x 10^6 IU/mg.
• Endotoxin: Less than 0.1 EU/μg.
• Purity: Greater than 95% as determined by RP-HPLC and reducing SDS-PAGE.
• Storage: Lyophilized protein should be stored at< -20°c, though stable at room temperature for 3>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>
• Reconstitution: Always centrifuge tubes before opening. Do not mix by vortex or pipetting.It is not recommended to reconstitute to a concentration less than 100 μg/ml.Dissolve the lyophilized protein in 1X PBS.Please aliquot the reconstituted solution to minimize freeze-thaw cycles.

Gene Information

• Gene Name: IL15 interleukin 15 [ Homo sapiens ]
• Official Symbol: IL15
• Synonyms: IL15; interleukin 15; interleukin-15; IL 15; MGC9721; IL-15
• Gene ID: 3600
• mRNA Refseq: NM_000585
• Protein Refseq: NP_000576
• MIM: 600554
• UniProt ID: P40933
• Chromosome Location: 4q31
• Pathway: Cytokine-cytokine receptor interaction, organism-specific biosystem; Cytokine-cytokine receptor interaction, conserved biosystem; Cytokines and Inflammatory Response, organism-specific biosystem; HTLV-I infection, organism-specific biosystem; HTLV-I infection, conserved biosystem; Herpes simplex infection, organism-specific biosystem; Herpes simplex infection, conserved biosystem
• Function: cytokine activity; cytokine receptor binding; protein binding