Table 1.

Parameters of helical structures found in proteins and foldamers consisting of sulfono-γ-AA peptide hybrids.

Secondary structure	Backbone	Handedness	Helical pitch p (Å)	Radius of helix r (Å)
α-helix	l-α-peptide	Right-handed	5.4	2.3
310 helix	l-α-peptide	Right-handed	6.0	1.9
π-helix	l-α-peptide	Right-handed	5.0	2.8
4.516-14 helix31	2:1 l-α/d-sulfono-γ-AApeptide	Right-handed	5.1	2.6
414 helix33	l-sulfono-γ-AApeptide	Left-handed	5.1	2.8
413 helix	1:1 l-α/l-sulfono-γ-AApeptide	Right-handed	5.3	3.0
d-413 helix	1:1 d-α/d-sulfono-γ-AApeptide	Left-handed	5.3	3.0