Abstract
Transient gene expression in human embryo kidney 293 (HEK293) cells is an established approach for the rapid production of large amounts of recombinant proteins (r-proteins). Milligram to gram quantities of r-proteins can be typically obtained within less than 10days following transfection. In this chapter, we describe a simple and robust transfection process of suspension-growing human embryo kidney 293 cells using two commercially available serum-free media and polyethylenimine as the transfection reagent. This chapter provides examples for the production and purification of a his-tagged recombinant protein and two monoclonal antibodies.
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