The area of allowed regions in the Ramachandran plot is least for:
Proline correctly identifies the graphical representation, mathematical relationship, or plot parameter described in this question. In Peptide and Ramachandran plo, graphical analysis transforms complex kinetic or biological data into linear relationships that allow precise determination of key parameters. The specific feature described by Proline is derived from the mathematical transformation of the underlying equation and has a defined physical meaning. The other options (Glycine, Alanine, and α-methyl L-valine) represent different parameters, intercepts, or slopes from either the same or
Ref: Campbell Biology, Urry et al., 12th Ed.
