Table 3. C_n-K Helix Parameters Derived from Fits in Figure 5B^a.

molecule	pH	R (nm)	ψ (deg)	W (nm)	h/P	% polydispersity
C16-K	6	62.6	29.3	115.6	0.59	5.5
C16-K	7	69.6	31.9	128.1	0.56	8.7
C14-K	6.5	76.1	29.0	180.45	0.68	7.4
C12-K	6.5	94.5	32.6	227.80	0.60	11.7

^aSome bilayer parameters were fixed: t_h = 0.75 nm and ρ_h = 430 e/nm³. The best fit values for the bilayer thickness and the electron density for the hydrophobic tail region were [t_b (nm), ρ_t (e/nm³)] = [3.8, 307], [3.37, 300], and [3.0, 290] for n = 16, 14, and 12, respectively.