Technote | BDNF (Qk050)

Qkine human BDNF is as biologically active as a comparable alternative supplier protein

Recombinant BDNF is used to maintain neurons and differentiate and mature human pluripotent stem cell-derived neural progenitors to cortical and motor neurons and cortical organoids.

Qkine human BDNF (Qk050) is animal origin-free, carrier-free, tag-free, and non-glycosylated to ensure its purity with exceptional lot-to-lot consistency.

Qkine BDNF bioactivity

  • Qkine BDNF (Qk050) was bioactive in a quantitative luciferase assay with an EC50 of 0.42 ng/ml.
  • This bioactivity was slightly higher than BDNF from an alternative supplier, which had an EC50 of 0.96 ng/ml.

Qkine BDNF was as bioactive as BDNF protein from an alternative supplier. Recombinant BDNF activity was determined using a NFAT-luciferase reporter assay in transfected HEK293T cells also expressing TrkB. Cells are treated in triplicate with a serial dilution of Qkine BDNF (Qk050, green) or Peprotech BDNF (Supplier B, black) for 6 hours. Firefly luciferase activity is measured and normalized to the control Renilla luciferase activity. Data from Qk050 lot #104465.

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 stem cells and organoids.

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

About our products

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Nine-point Quality Commitment

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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Animal-free

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

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