φ (N-Cα) vs ψ (Cα-C) dihedral angle scatter for protein residues; allowed regions cluster around α-helix (-60,-45), β-sheet (-120,120), left-handed helix (60,45).
φ (N-Cα) vs ψ (Cα-C) dihedral angle scatter for protein residues; allowed regions cluster around α-helix (-60,-45), β-sheet (-120,120), left-handed helix (60,45).