Activity testing is in progress. It is theoretically active, but we cannot guarantee it. If you require protein activity, we recommend choosing the eukaryotic expression version first.

IL-15 & IL-15RA Protein, Human, Recombinant (hFc) is expressed in HEK293 mammalian cells with hFc tag. The predicted molecular weight is 47.9 kDa and the accession number is NP_002180.1&NP_000576.1.

Human

HEK293 Cells

A DNA sequence encoding the human IL15RA (NP_002180.1) (Ile31-Asp96) linked with the human IL15 (NP_000576.1, with mutation Asn 120 Asp) (Asn49-Ser162) by a peptide linker was fused with the Fc region of human IgG1 at the C-terminus. Predicted N terminal: Ile 31

> 95 % as determined by SDS-PAGE. > 90 % as determined by SEC-HPLC.

A Certificate of Analysis (CoA) containing reconstitution instructions is included with the products. Please refer to the CoA for detailed information.

It is recommended to store recombinant proteins at -20°C to -80°C for future use. Lyophilized powders can be stably stored for over 12 months, while liquid products can be stored for 6-12 months at -80°C. For reconstituted protein solutions, the solution can be stored at -20°C to -80°C for at least 3 months. Please avoid multiple freeze-thaw cycles and store products in aliquots.

IL-15 and IL-15 receptor alpha (IL-15Rα) play a significant role in multiple aspects of T cell biology. Interleukin (IL)-15 is essential for natural killer (NK), NKT and memory (m) CD8+ T cell development and function, and is currently under investigation as an immunotherapeutic agent for the treatment of cancer. Recently, the creation of IL-15 superagonist by complexing IL-15 and its high affinity receptor alpha (IL-15 Rα) in solution, inspired by the natural trans-presentation of IL-15, advances the potential of IL-15-based tumor immunotherapy. Gene therapy using engineered cells co-expressing IL-15/IL-15 Rα complex for cancer treatment is also emerging.