... conformationalspace of b-aminoacidsislargerthanthatofa-aminoacids, but low-energy conformations of the b-amino acidsbackbone, corresponding to gauche rotamers around the Ca–Cb bond, can overlap canonical ... Ac-b2-HAla-NHMe and Ac-b3-HAla-NHMe indicate that low-energy conformations of the b-amino acids backbone, corresponding to gauche rotamersaround the Ca–Cb bond, may overlap canonical backboneconformers ... potentialenergy surfaces the conformers of b-amino acids that fitwith canonical conformations of a- amino acids, two(/ ) w) Ramachandran maps corresponding to h torsionangle values of +60°,gauche(+),or)60°,...