PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 29314708-3 2018 Statistics are also scarce on the decline of cell-specific productivity (Qp ) over time for recombinant CHO cells developed using the glutamine synthetase (GS)-based methionine sulfoximine (MSX) selection system. Methionine Sulfoximine 166-188 glutamine synthetase Cricetulus griseus 134-154 29314708-3 2018 Statistics are also scarce on the decline of cell-specific productivity (Qp ) over time for recombinant CHO cells developed using the glutamine synthetase (GS)-based methionine sulfoximine (MSX) selection system. Methionine Sulfoximine 190-193 glutamine synthetase Cricetulus griseus 134-154