Table 1.
Glycoforms observed in SOSIP.664 trimers.
| Glycosylation sites* | KNH1144 | BG505 (293S) | BG505 (293F) |
|---|---|---|---|
| N88 | Man5 | Man5 | Man5 & Complex |
| N156 | Man8,9 | - | - |
| N188/190 & N190c | Man5a | Man5a,b | Complex |
| N197 | Man5–9 | Man5–9 | Man5–9 |
| N234 | Man6–9a | Man8,9 | Man8,9 |
| N241 | Man6–9a | - | - |
| N262 | Man8,9 | Man8,9 | Man8,9 |
| N276 | Man7,8 | Man5–8 | Man5–8 |
| N295 | - | Man8b | Man8a |
| N301 | Man7–8 | Man8b | Man8a |
| N332 & N339 | Man8,9a | - | - |
| N356 & N363 | Man7a | - | - |
| N448 | Man8,9 | Man8,9 | Man8,9 |
| N463/462 | Man5 | Man5 | Complex |
| N611 & N616/618 | Man5a,b | Man5b | Complex |
| N625 | Man5b | Man5b | Man5b |
| N637 | Man5,6 | Man5–8 | Man5–8 |
N-linked glycosylation site(s) where some peptides contained more than one glycan (denoted by +); KNH1144/BG505 position
Data were obtained from peptides bearing two glycans; therefore, only the average for the total combined glycosylation is reported.
Glycan occupancy was observed at less than 90% as assessed by the relative abundance of non-glycosylated and deglycosylated signal after PNGaseF digestion (see Tables S1 and S2).