Next-Generation Glutamine Synthetase Expression Vector for Therapeutic Protein Manufacturing Using CHO Cells.
The glutamine synthetase expression system is widely used for therapeutic protein biomanufacturing in Chinese hamster ovary (CHO) cells. Here, we present the design of an enhanced glutamine synthetase vector for generating CHOK1SV GS-KO stable pools that produce recombinant proteins at multigram-per-liter levels. We fi...