Table I. Cytokine affinity and receptor exchange properties of engineered JES6–1 antibody and immunocytokine point mutants.
The JES6–1 antibody chains on which the mutations are located are indicated in parentheses.
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 |