Table 1. Kinetics of Cyr61 interactions with VTNC and SMTB 1–44.
ka1 (M−1s−1) | kd1 (s−1) | ka2 (s−1) | kd2 (s−1) | KD (nM) | |
Monomeric VTNC | 5.678×105 | 0.02454 | 0.007829 | 0.001180 | 5.66 |
Multimeric VTNC | 1.043×105 | 0.06954 | 0.002555 | 0.000110 | 27.55 |
SMTB 1–44 | 1.273×105 | 0.02501 | 0.01094 | 0.000592 | 10.09 |
Responses were obtained by injecting Cyr61 over immobilized VTNC or SMTB 1–44 for 90 seconds at a flow rate of 30 µl/minute. Data fitting using two-site binding model (conformational change). Kinetic values obtained from the sensorgrams are presented in Figure 2, C and D, and in Figure 3E.