Table 2. Summary of VH region glycosylation of antibody IgG expressed in 293 and CHO cells determined by mass spectrometry.
VH glycosylation in IgG expressed in: | |||
---|---|---|---|
Variant | Sequencea | 293 cells | CHO cells |
MSL-109 | NSDST | No | NDb |
D53S | NSSST | Yes | Yes |
D53N | NSNST | Yes | Yes |
T55R | NSDSR | No | ND |
D53S/T55R | NSSSR | Partial | Partial |
D53N/T55R | NSNSR | No | ND |
aSequence between heavy chain Kabat positions 52 and 55 shown. Potential glycosylation sites are underlined. Mutations from MSL-109 are highlighted. b Not determined.