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CD28 dAb affinity and kinetic parameters
| Receptor | ka (1/Ms) | kd (1/s) | Kd (nM) | Rmax | |
| CD28 dAb | Mouse CD28 | 8.4 ± 6.4 × 104 | 2.2 ± 1.6 × 10−5 | 2.6 ± 2.8 | 5.9 ± 0.3 |
| CD28 dAb | Human CD28 | N.D. | N.D. | N.D. | 0 |
N.D., none detected; Rmax = Biacore maximum response signal.
