Table 1.

Intra- and intermembrane diffusion rates and half-lives for cholesterol transport in POPC vesicles at 50°C

	Kf (min−1)	T1/2_f (min)	Kex (min−1)	T1/2_ex (min)
Cholesterol	0.0035 ± 0.0002	200 ± 13	0.0079 ± 0.0002	88 ± 2
Cholesterol-sulfate	0.0038 ± 0.0005	182 ± 25	0.15 ± 0.03	4.6 ± 0.8
DHE	0.03 ± 0.01	22 ± 7	0.033 ± 0.003	21 ± 2
Cholesterol with β-cyclodextrin	021 ± 0.002	33 ± 3	0.055 ± 0.003	12.5 ± 0.6

Cholesterol measurement was repeated three times and the weighted averages are reported here.