TABLE 1.

Secondary structure estimates for gB(801-904) obtained from θ₂₂₂ values^a

Additive	θ222, ° cm2 dmol−1	% Helicityb	Absolute increase in helicity (%)
Protein alone (control)	−6,916.3	26.0
0.01% SDS	−11,281.5	36.4	10.4
0.05% SDS	−9,312.5	31.7	5.7
0.5% Tween 20	−6,921.8	26.0	None
30% TFE	−19,482.3	55.9	29.9
50% EtOH	−17,540.1	51.3	25.3

^aCorresponding CD spectra are shown in Fig. 3.

^bCalculated using the formula [(θ₂₂₂ − θ₂₂₂⁰)/(θ₂₂₂^H − θ₂₂₂⁰)] × 100, where θ₂₂₂ = −38,000° cm² dmol⁻¹ and θ₂₂₂ = 4,000° cm² dmol⁻¹ (32).