Table 3.
Nearest neighbor parameters for RNA duplexes in 20% PEG 200
| Nearest neighborsa | # Occurrences | ΔH° in PEG (kcal/mol) | ΔS° in PEG (eu) | ΔG°37 in PEG (kcal/mol) |
|---|---|---|---|---|
| AA UU | 14 | -6.3 ± 1.5 | -17.5 ± 4.9 | -0.88 ± 0.09 |
| AU UA | 25 | -6.7 ± 3.1 | -18.2 ± 10.4 | -1.13 ± 0.20 |
| UA AU | 21 | -12.7 ± 3.1 | -36.6 ± 9.8 | -1.36 ± 0.19 |
| CU GA | 25 | -8.8 ± 2.1 | -21.7 ± 6.6 | -2.03 ± 0.12 |
| CA GU | 19 | -13.0 ± 2.5 | -36.0 ± 8.0 | -1.91 ± 0.15 |
| GU CA | 20 | -12.8 ± 1.9 | -33.7 ± 6.1 | -2.36 ± 0.12 |
| GA CU | 25 | -14.5 ± 2.0 | -39.1 ± 6.9 | -2.36 ± 0.13 |
| CG GC | 29 | -9.0 ± 2.5 | -22.0 ± 8.0 | -2.19 ± 0.15 |
| GG CC | 17 | -14.6 ± 2.0 | -36.3 ± 6.4 | -3.32 ± 0.12 |
| GC CG | 30 | -18.9 ± 2.3 | -49.9 ± 7.3 | -3.44 ± 0.14 |
| Terminal AU | 33 | 2.8 ± 1.3 | 7.3 ± 4.2 | 0.55 ± 0.08 |
| Initiation | 38 | 5.3 ± 7.7 | 2.2 ± 24.2 | 4.63 ± 0.46 |
| Symmetric | 34 | 1.0 ± 3.5 | 1.0 ± 10.9 | 0.68 ± 0.21 |
aFor each nearest neighbor, the top sequence is written 5′-3′ and the bottom is written 3′-5′.