Table 4. Modal values for backbone dihedral angles of 3₁₀ helices of lengths from 3 to 7.

Length	Count	Perc.	φ1, ψ1	φ2, ψ2	φ3, ψ3	φ4, ψ4	φ5, ψ5	φ6, ψ6	φ7, ψ7
3	2,313	80.7	-57,-37	-67,-17	-93, 0
4	347	12.1	-57,-37	-60,-27	-63,-20	-93, 0
5	90	3.1	-57,-33	-63,-23	-63,-23	-63,-20	-103, 3
6	78	2.7	-60,-30	-67,-17	-63,-23	-60,-30	-63,-20	-97, 0
7	27	0.9	-57,-30	-60,-23	-67,-17	-63,-23	-60,-27	-67,-17	-100, 3
≥8	12	0.4	-	-	-	-	-	-	-
Total	2,867	100.0