Table 3.
Solvent | Type | AMBER ff03 | AMBER10:EHT | ||
---|---|---|---|---|---|
Potential energiesa | Nconf/Nallb | Potential energiesa | Nconf/Nallb | ||
CHCl3 | type II′ | −2068.16 ± 31.10 | 100/1343 | −1967.47 ± 30.42 | 100/5821 |
type II | −2062.39 ± 31.51 | 100/547 | −1966.19 ± 31.65 | 100/357 | |
3–4 cis | −2063.76 ± 34.82 | 100/4224 | −1966.41 ± 33.07 | 100/3595 | |
CHX | type II′ | 2504.51 ± 47.28 | 100/3046 | 2652.29 ± 52.29 | 100/8401 |
type II | 2516.80 ± 47.43 | 100/422 | 2644.81 ± 44.47 | 100/158 | |
3–4 cis | 2514.66 ± 39.71 | 100/3741 | 2654.49 ± 51.12 | 100/1405 | |
HEX | type II′ | 2764.98 ± 46.33 | 100/3835 | 2884.28 ± 45.13 | 100/7539 |
type II | 2765.23 ± 58.91 | 100/220 | 2895.75 ± 46.66 | 49/49 | |
3–4 cis | 2755.76 ± 41.99 | 100/4027 | 2890.36 ± 52.69 | 100/3150 |
Unit in kcal/mol.
Nconf was employed to calculate the average potential energy and NOE violations. Nall is the total number of corresponding β-turn conformations out of 10,000 at T = 300 K.