Table II.

A List of all Model Parameters^a

Parameter	sCT(8–32)				YGG-3V
	Model I		Model II		Model I		Model II
	0% HIFP	20% HIFP	0% HIFP	20% HIFP	0% HIFP	20% HIFP	0% HIFP	20% HIFP
Vh	−2.84	−3.16	−2.84	−2.20	−3.04	−3.37	−2.87	−2.24
δh	−0.0212	−1.19	0.763	0.552	0.0541	−1.11	0.731	0.520
Va	0	0	0	0	0	0	0	0
δa	1.39	1.39	2.25	2.25	1.67	1.67	2.24	2.24
Vc	−0.579	2.00	1.14	1.51	0.597	2.02	1.08	1.46
δc	3.19	2.69	4.10	3.08	3.52	3.01	4.10	3.07
Uccc	∞	∞	0	0	∞	∞	0	0
γccc	—	—	2.92	2.92	—	—	2.92	2.92
Ucac	∞	∞	−2.34	−2.34	∞	∞	−2.34	−2.34
γcac	—	—	2.76	2.76	—	—	2.76	2.76
Uaca	∞	∞	−2.83	−2.83	∞	∞	−2.83	−2.83
γaca	—	—	2.15	2.15	—	—	2.15	2.15
Uaaa	−4.64	−4.64	−4.64	−4.64	−4.64	−4.64	−4.64	−4.64
γaaa	2	2	2	2	2	2	2	2
Uo	−3.63	−3.32	−3.27	−3.21	−3.63	−3.32	−3.27	−33.21

^aThe parameter V_a is fixed to zero as an arbitrary energy reference. The parameters δ_a, U_o, U_xyz, γ_xyz are fixed to the values given in the table, independent of HFIP concentration. The value of ∞ for U_xyz indicates that such a H-bond is not allowed to form, and dashes are used for γ_xyz whenever the H-bond is disallowed. In each model, all slope parameters are constrained to be the same for both polypeptides.