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.
High quality food grade proteins
Qkine food grade growth factors are manufactured under allergen-free HACCP regime with full traceability and documentation.
Thermostable 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.
Neural stem cell culture
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 activin A protein (Qk001)
High purity and bioactivity animal origin-free recombinant activin A
- High-purity bioactive dimer.
- Extensively validated and benchmarked with other suppliers’ proteins.
- For reproducible induced pluripotent and embryonic stem cell cultures.
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.
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 April 2025
Pep Talk March 2025
