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Adv Exp Med Biol. 2016;896:217-24. doi: 10.1007/978-3-319-27216-0_14.

Fundamentals of Expression in Mammalian Cells.

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IONTAS Ltd, Babraham Research Campus, Babraham, Cambridge, CB22 3AT, UK.


Expression of proteins in mammalian cells is a key technology important for many functional studies on human and higher eukaryotic genes. Studies include the mapping of protein interactions, solving protein structure by crystallization and X-ray diffraction or solution phase NMR and the generation of antibodies to enable a range of studies to be performed including protein detection in vivo. In addition the production of therapeutic proteins and antibodies, now a multi billion dollar industry, has driven major advances in cell line engineering for the production of grams per liter of active proteins and antibodies. Here the key factors that need to be considered for successful expression in HEK293 and CHO cells are reviewed including host cells, expression vector design, transient transfection methods, stable cell line generation and cultivation conditions.


Antibody expression; Biologics production; High-throughput expression; Transient transfection

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