Technote | IL-15 (Qk097)

Qkine Interleukin 15 (IL-15) is as biologically active as a comparable alternative supplier protein

Interleukin-15 (IL-15) is a pro-inflammatory cytokine which regulates immune responses. Recombinant IL-15 promotes the growth and activation of T-cells and B cells and is essential in the development, survival and activation of NK cells. IL-15 can also promote conversion of monocytes into dendritic cells.

Qkine has optimized the IL-15 manufacture process to produce a highly bioactive protein with excellent lot-to-lot consistency for enhanced experimental reproducibility.

Qkine IL-15 bioactivity

  • Qkine IL-15 (Qk097) was bioactive in a quantitative assay with an EC50 of 93 pg/ml (7.2 pM).
  • This was comparable to the bioactivity of IL-15 from an alternative supplier, which had an EC50 of 97 pg/ml (7.5 pM).

Qkine IL-15 was as bioactive as IL-15 from an alternative supplier. Recombinant IL-15 activity was determined using the Promega IL-15 Bioassay Kit (JA2011). Cells were treated in triplicate with a serial dilution of Qkine IL-15 (Qk097, green) or Peprotech IL-15 (200-15, Supplier B, black) for 6 hours. Activity was measured using Bio-Gloâ„¢ Reagent and readings normalized to the maximum response. Data from Qk097 lot #204728.

Qkine recombinant proteins have the advantage of being highly pure and animal origin-free, giving lot-to-lot consistency in bioactivity for long-term reproducible culture of hematopoietic stem cells and immune cells.

All our recombinant proteins are animal-free and come with Bioactivity. Guaranteed.

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Qkine is committed to manufacturing bioactive proteins of the highest quality to enhance scientific outcomes and improve reproducibility.

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Learn more about our quality management system implemented to comply with the requirements of ISO 9001: 2015.

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Qkine manufactures recombinant proteins in a dedicated animal-free laboratory located in an ISO 9001: 2015 certified facility.

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