Table 2.
Equilibrium KD (nM) determined by BIAcore for the binding to human FcRn for Bs4Ab-VA and for the anti-VEGF and anti-Ang2 antibodies.
| Human FcRn | anti-VEGF | anti-Ang2 | Bs4Ab-VA |
|---|---|---|---|
| pH 6 | 840 | 800 | 680 |
| pH 7.4/6 | Negative | Negative | Negative |
“Negative” denotes that FcRn binding at pH 7.4 relative to pH 6 was negligible (i.e., < 1%).