Table 4.
The binding constant, Ka, the number of binding sites, n, and the thermodynamic parameters for the association of PB2 with the P domain.
pH | T(K) | Ka ( × 105 L·mol−1) |
n | R2 | Δ H (kJ·mol−1) |
ΔG (kJ·mol−1) |
ΔS (J·mol−1 K−1) |
---|---|---|---|---|---|---|---|
7.4 | 298 | 0.6053 | 1.116 | 0.9938 | −172.879 | −372.859 | 671.077 |
303 | 1.5704 | 1.223 | 0.9971 | −376.215 | |||
310 | 8.8712 | 1.407 | 0.9974 | −380.913 |
R2 is the correlation coefficient.
Conditions: [P domain] = 8.41 μM, [PBS] = 10 mM, pH 7.4, [PB2] = 8.41–84.1 μM.