Mammalian cells have become the preferred host cells in the field of biopharmaceuticals. Mammalian cell expression systems can introduce proper protein folding  and carry out post-translational modifications, which are essential for full biological activity. The expressed recombinant proteins are closest to the human conformation and have the same biological activity as natural proteins. Heterologous proteins expressed by mammalian cells have the incomparable advantages of specific prokaryotic expression systems and eukaryotic expression systems such as yeast and insect cells in terms of activity, which are closer to natural proteins. Therefore, mammalian cell expression systems have been widely used in the development and production of therapeutic recombinant monoclonal antibody drugs and protein drugs. We has established a mature mammalian protein expression system and purification service platform, providing expression and purification services of mammalian protein expression system to help you quickly obtain high-quality protein.