Table I. Cytokine affinity and receptor exchange properties of engineered JES6–1 antibody and immunocytokine point mutants.
Construct | KD of IL-2/Antibody Complex (nM) | KD of IL-2Rα/IC Complex (nM) |
---|---|---|
JES6–1 | 5.6 | 290 |
D55A (VH) | 500 | 230 |
D58A (VH) | 200 | 260 |
E60A (VH) | 56 | 210 |
R62A (VH) | 4.3 | 190 |
S34A (VL) | 6.5 | 170 |
Y41A (VL) | 6.4 | 130 |
H100A (VL) | 62 | 240 |
Y101A (VL) | 12 | 140 |