Table 2. Terms in Eq. (2) that are included in ProCS15 for a given atom type are marked with an “x”.

	Cα	Cβ	C′	Hα	HN	N
$\Delta {\sigma }_{BB}^{i-1}$	x	x	x	x	x	x
$\Delta {\sigma }_{BB}^{i+1}$	x	x	x	x	x	x
$\Delta {\sigma }_{1°HB}^i$				x	x	x
$\Delta {\sigma }_{2°HB}^i$	x		x	x	x	x
$\Delta {\sigma }_{1°H\alpha B}^i$				x	x
$\Delta {\sigma }_{2°H\alpha B}^i$	x		x	x	x	x
ΔσRC				x	x
Δσw					x