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RBD-ACE2 affinity measured by MST. All experiments were performed in titration in triplicates and analyzed by the MO Affinity Analysis software (NanoTemper) by Hill fit
| RBD | EC50 (nM) | EC50 confidence (nM) |
|---|---|---|
| Wuhan strain | 40.7 | 1.8 |
| Beta | 35.2 | 1.7 |
| Delta | 33.6 | 2.2 |
| Omicron | 42.3 | 1.6 |
