. Author manuscript; available in PMC: 2011 Jun 16.

Published in final edited form as: J Am Chem Soc. 2010 Jun 16;132(23):7868–7869. doi: 10.1021/ja103233a

Table 1.

Backbone Torsion Angles (deg) ^† from β/γ Peptides

Peptides	residues	φ	θ	ζ	ψ
β/γ pentamer 4	β	−107.7	93.3		−128.3
	γ	−134.7	60.1	59.8	−121.0
	β	−133.6	113.5		−85.7
	γ	−147.3	57.9	46.5	−129.8
	β	−167.9	141.4		−155.0

computational Study ^‡,^5d	β	89.1	−94.1		121.9
computational Study ^‡,^5d	γ	124.9	−60.4	−62.2	132.0

flexible β/γ (NMR)^5e	β	120	60		0
flexible β/γ (NMR)^5e	γ	120	−60	60	−120

^†

Nomenclature for the backbone torsion angles in β,γ-residues is as described in Figure 1.

^‡

Average backbone torsion angles