Dissection of Factors Affecting the Variability of the Peptide Bond Geometry and Planarity

Figure 1

Schematic representation that shows the standard backbone torsion angles φ, ψ, and ω and the bond angles NC^αC, C^βC^αC, NC^αC^β, C^αCO, C^αCN⁺¹, OCN⁺¹, and C⁻¹NC^α. The dihedral angle ω3, which is used for the definition of the carbon carbonyl pyramidalization (see Methods), is defined by the atoms OCN⁺¹C^α+1.