Table 3.
Mg2+-dependence of hairpin RNA substrate folding
| RNA substrate | [Mg2+]1/2 (µM)a | ha |
|---|---|---|
| HP6 | 35 ± 4 | 1.21 ± 0.11 |
| HP14 | 82 ± 10 | 1.15 ± 0.17 |
| HP21 | 68 ± 4 | 1.16 ± 0.05 |
Determined by nonlinear regression of hairpin RNA substrate fluorescence versus Mg2+ concentration at 25 °C using equation 3. Values are quoted as the mean ± SD for five independent experiments.