Figure 1From: Characterization and sequence prediction of structural variations in α-helixPlots for finer geometric invariants for different helix subclasses. The octapeptide helical structures are divided into five overlapping tetrahedrons consisting of . For each of the tetrahedra, we plot: (a) d i , i +3 denotes distance between the first and the last C α s in tetrahedron (b) vol i , i +1, i +2, i +3 represent volume of the tetrahedron.Back to article page