Table 4.
[MgCl2] (mM) | Apparent Stoichiometry | Apparent Kd (nM) | ΔH° (kcal/mol) |
---|---|---|---|
0 | 0.59 | 1600 | -26 |
0.1 | 0.60 | 130 | -40. |
0.5 | 0.55 | 93 | -42 |
1 | 0.55 | 150 | -48 |
10 | 0.41 ± 0.02 | 100 ± 20 | -55 ± 4 |
All experiments were performed in 10 mM sodium cacodylate (pH 5.8) with 10 mM KCl. Experiments were at 30 °C, which was chosen because it is in the center of the lower temperature regime.