Table 2.

Parameters of the energy function

ɛφ	ɛψ	ɛsa	ɛhb	ɛAA	σi, Å						σhb, Å	σAA, Å
					N	Cα	C′	H	Cβ	O
1	1	0.0034	2.8	2.2	1.65	1.85	1.85	1.0	2.5	1.65	2.0	5.0

Energies are in dimensionless units, in which the folding transition occurs at kT ≈ 0.65 for the three-helix-bundle protein (see below).