Proteintech Group manufactures RUO and GMP-grade HumanKine recombinant proteins using a human expression system. Recombinant proteins created in HEK293 cells using animal-free components offers high bioactivity, stability and native human conformation and post-translational modifications. The RUO and GMP products are both manufactured using the same expression systems, production process and operating procedures in a GMP facility. This ensures that there is no variability in the quality and performance of these products, facilitating the smooth transition from pre-clinical to clinical.