Bioactivity. Guaranteed.
Raising the standard in bioactive protein manufacturing and innovation
Qkine is committed to manufacturing bioactive proteins of the highest quality to enhance scientific outcomes and improve reproducibility.
Our robust animal-free manufacturing platform, along with rigorous quality control procedures, ensures exceptional bioactivity and consistent performance from lot to lot, guaranteeing outstanding performance in your applications. We proactively leverage our expertise in manufacturing and protein engineering to develop unique optimized proteins designed to address fundamental biological, translational and scalability challenges.
Our product portfolio comprises growth factors and cytokines tailored for stem cell and organoid culture, as well as biomarkers and attachment factors. We actively support emerging fields such as cellular agriculture, regenerative medicine, synthetic hydrogels, organ-on-a-chip technology, and bioprinting.
To ensure absolute reproducibility and optimize scientific outcomes, all our products rigorously adhere to the Nine-point Qkine Quality Commitment.
Scientific areas
Qkine manufacture a portfolio of high purity, highly bioactive growth factors for pluripotent stem cell maintenance and differentiation. Qkine proteins are optimized for research areas such as neural differentiation, organoid culture, cellular agriculture and hematopoietic and hepatic research.
Growth factors for organoid research
Qkine is committed to manufacturing enhanced-quality bioactive proteins to improve scientific outcomes and reproducibility in organoid culture.
Reproducible cultures with FGF2-G3
Thermostable FGF2-G3 is a hyperstable form of FGF-2 (bFGF), the essential component for the maintenance of pluripotency in stem cell media.
Growth factors for neural stem cells
High-quality growth factors are essential for developing and maintaining robust, reproducible, and physiologically relevant neural cultures.
Products
Qkine proteins are completely animal-origin free and high purity for reproducible cell, stem cell and organoid culture. With bioactivity optimized and guaranteed to be consistent lot-to-lot Qkine growth factors and cytokines are the highest quality, all proteins manufactured in Cambridge, UK
Recombinant human BDNF protein (Qk050)
Animal origin-free high purity BDNF for neuronal stem cell and organoid differentiation and maintenance.
- Highly bioactive and consistent activity lot-to-lot
- Extensively tested in neuronal maintenance and differentiation protocols.
- High purity animal origin-free, carrier-free, tag-free, and non-glycosylated.
Recombinant human TGF-β1 PLUS™ protein (Qk010)
The first commercially available animal origin-free TGF-β1
- Bioactive TGF-β1 expressed in E. coli and completely animal origin-free.
- For highly reproducible results and compatible with chemically-defined stem cell media
- Used in pluripotent stem cell maintenance media, including E8, StemPro, and mTeSR media.
Recombinant human TPO (Qk098)
High purity, highly bioactive thrombopoietin (TPO) to support the self-renewal and maintenance of hematopoietic stem cells.
- Highly bioactive protein with lower EC50 than alternative supplier proteins
- High purity monomer, animal origin-free, tag and carrier free
- Suitable for reproducible hematopoietic cell cultures and the maturation of megakaryocytes into platelets
Latest News
Explore the latest news on what is happening at Qkine and our blogs with updates on recombinant protein technology, stem cell and organoid research and translational applications.
Pep Talk August 2025
Updated shipping charges and options – September 2025