Table 2.
Summary of EC50 values (in ng/ml) derived from D7324-capture ELISA with different SOSIP.664 trimers.
For comparison, midpoint neutralization concentrations (IC50 in ng/ml) of the sequence-matched Env-peudotyped viruses are also indicated.
| BG505
|
B41
|
ZM197m
|
||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| SOSIP.664 | pseudovirus | SOSIP.664 | pseudovirus | SOSIP.664 | pseudovirus | |||||
|
|
|
|
||||||||
| Germline | Mature | Mature | Germline | Mature | Mature | Germline | Mature | Mature | ||
|
|
|
|
||||||||
| V1V2 apex | PG9 | 935 | 40 | 45* | >25000 | 242 | 560 * | 6769 | 103 | 393* |
| PG16 | 13100 | 31 | 8* | >25000 | 65 | 80 * | >25000 | 77 | 49* | |
| PGT145 | >25000 | 12 | 83* | >25000 | 67 | 60 | >25000 | 27 | 393* | |
| VRC26.09 | >25000 | 31 | <10 | >25000 | 1204 | >25000 | >25000 | 50 | 4* | |
| CH01 | 640 | 58 | 301* | 1003 | 44 | N.D. | >25000 | 2044 | N.D. | |
|
|
|
|
||||||||
| CD4bs | VRC01 | >25000 | 9 | 70* | >25000 | 34 | 1380 * | >25000 | 7 | 329* |
| 3BNC60 | >25000 | 21 | 34 * | >25000 | 55 | 11 | >25000 | 58 | 77 | |
| 1NC9 | >25000 | 209 | 251* | >25000 | 355 | 1961 | >25000 | 128 | 1006* | |
| CH103 | >25000 | 179 | 2572* | >25000 | 2412 | >25000 | 18090 | 143 | 18222 | |
| CH31 | >25000 | 13 | 14* | >25000 | 32 | 26 | >25000 | 48 | 358 | |
|
|
|
|
||||||||
| gp41 and interface | PGT121 | >25000 | 61 | 15* | >25000 | 147 | 920 * | >25000 | 35 | 35* |
| PGT128 | >25000 | 12 | 11* | >25000 | 46 | 414 | >25000 | 6 | 33* | |
|
|
|
|
||||||||
| V3 glycan | PGT151 | >25000 | 28 | 1 | >25000 | 126 | 300 * | >25000 | 30 | 2* |
| 35O22 | >25000 | 379 | 8 | >25000 | 1052 | >25000 | >25000 | 463 | 2816* | |
| 3BC315 | 538 | 144 | 1259 * | >25000 | 102 | >25000 | 266 | 124 | 3549* | |

IC50 values obtained from (Sanders et al., 2013) for BG505; (Pugach et al., 2015) for B41; (Julien et al., in press) for ZM197M
N.D.: not determined