Table 2. The dependence of rotamer probabilities on the backbone conformation of the β314 helix.
Helix | ϕ† | ψ† | θ† | β314 Crystal (R) †† | β314 Literature (R) †† | β314 3.0 Idealized (R) †† |
---|---|---|---|---|---|---|
β314 Crystal22 | 54.2 | -135.1 | -132.3 | 1 | ||
β314 Literature73 | 60.0 | -134.3 | -139.9 | 0.889 | 1 | |
β314 3.0 Idealized | 55.0 | -123.4 | -139.3 | 0.929 | 0.824 | 1 |
Backbone torsional angles in degrees.
The correlation coefficients in the three rightmost columns are based on the linear regression of the log of the calculated rotamer probabilities of residues ILVFYSTD between the helical backbones under consideration.