Protein Expression Systems

Protein expression systems are commercial tools and kits for producing desired proteins in vitro. These can be used in the study of protein structure and function, mutation analysis, gene expression, and for large-scale protein production. Both prokaryotic and eukaryotic systems are available; commonly used protein expression systems include bacteria, yeast, insect, mammalian, and cell-free. Each system has its advantages and it is important to consider factors such as protein yield, workflow complexity, post-translational modifications, and downstream applications. For instance, mammalian expression systems are ideal for generating human proteins that contain post-translational modifications. On the other hand, cell-free expression systems enable quick, small-scale expression of native, untagged proteins. Browse the products below to find the protein expression system that best suits your research needs.