IL-15 Protein, Human (Biotinylated, HEK293, Fc-Avi)

IL-15 protein regulates immune cells, stimulates the proliferation of NK cells, T cells, and B cells, and promotes cytokine secretion. IL-15 Protein, Human (Biotinylated, HEK293, Fc-Avi) is the recombinant human-derived IL-15 protein, expressed by HEK293 , with C-Avi, C-hFc labeled tag. The total length of IL-15 Protein, Human (Biotinylated, HEK293, Fc-Avi) is 114 a.a., with molecular weight of 54-60 kDa.

IL-15 Protein assumes a pivotal role in orchestrating inflammatory and protective immune responses against microbial invaders and parasites, modulating immune cells across both the innate and adaptive immune systems. This cytokine stimulates the proliferation of natural killer cells, T-cells, and B-cells, while also promoting the secretion of various cytokines. Notably, IL-15, unlike most cytokines, is expressed on the surface of IL-15-producing cells in association with its high-affinity receptor IL15RA, delivering signals to target cells expressing IL2RB and IL2RG receptor subunits. Upon binding to its receptor, IL-15 triggers the phosphorylation of JAK1 and JAK3, recruiting and subsequently phosphorylating signal transducer and activator of transcription-3/STAT3 and STAT5. In monocytes, IL-15 induces the production of IL8 and monocyte chemotactic protein 1/CCL2, attracting neutrophils and monocytes to infection sites. Additionally, in mast cells, IL-15 induces rapid tyrosine phosphorylation of STAT6, exerting control over mast cell survival and the release of cytokines such as IL4.

Measured by its binding ability in a functional ELISA. Immobilized Human IL15RA at 2 μg/mL can bind Biotinylated Human IL15,the EC₅₀ is 14.98-25.37 ng/mL.

Human

HEK293

C-Avi;C-hFc

P40933 (N49-S162)

3600  [NCBI]

54-60 kDa

Greater than 95% as determined by reducing SDS-PAGE.

Lyophilized powder

Lyophilized a 0.22 μm filtered solution of PBS, 6% Trehalose, pH 7.4.

<1 EU/μg, determined by LAL method.

It is not recommended to reconstitute to a concentration less than 100 μg/mL in ddH₂O.

Stored at -20°C for 2 years. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.

Room temperature in continental US; may vary elsewhere.