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. 2004 Sep;87(3):1672–1685. doi: 10.1529/biophysj.104.043174

FIGURE 8.

FIGURE 8

Partitioning of PEGs into the maxi-anion channel pore. Partition coefficients for inward (A) and outward (B) unitary conductances were calculated according to Eq. 9 and plotted as a function of the polymer hydrodynamic radius (R). The solid descending line for the inward conductance is a linear fit to the data points for PEG 300–PEG 1540. The point of intersection with the lower plateau is at R = 1.29 nm. The solid straight descending line for the outward conductance is a linear fit to the data points for PEG 600–PEG 2000. The crossing point with the lower plateau is at R = 1.38 nm. The dashed lines are fits to Eq. 10 with Rp = 0.97 ± 0.02 nm and α = 3.07 ± 0.17 for the inward conductance and Rp = 1.06 ± 0.03 nm and α = 3.27 ± 0.33 for the outward conductance (see text for details).