Table 1.

List of the AAIndex indices used in this article

AAIndex ID	Description
FINA910101 [60]	Helix initiation parameter at position i-1 (Finkelstein et al., 1991)
OOBM850101 [61]	Optimized beta-structure-coil equilibrium constant (Oobatake et al., 1985)
TANS770108 [62]	Normalized frequency of zeta R (Tanaka-Scheraga, 1977)
TANS770106 [62]	Normalized frequency of chain reversal D (Tanaka-Scheraga, 1977)
WOEC730101 [63]	Polar requirement (Woese, 1973)
LEWP710101 [64]	Frequency of occurrence in beta-bends (Lewis et al., 1971)
ISOY800105 [65]	Normalized relative frequency of bend S (Isogai et al., 1980)
FAUJ880108 [66]	Localized electrical effect (Fauchere et al., 1988)
RICJ880105 [67]	Relative preference value at N2 (Richardson-Richardson, 1988)
COSI940101 [68]	Electron-ion interaction potential values (Cosic, 1994)