Abstract

Transient gene expression (TGE) is an important tool for generating recombinant proteins in a short period of time. The human cell line HEK293 is widely used for this purpose since it can grow in suspension to a high cell density in serum-free media. In addition, this cell line is amenable to several transfection methods and produces recombinant proteins in satisfactory quantities for functional and structural analysis. This chapter describes the methodology for TGE using the Expi293 system, which provides higher expression levels than other HEK293-based systems.

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