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Figure 15. (A) Effect of UV light on relative monovalent cation permeabilities of RET channels. The permeability ratios of various monovalent cations (X+ = Li+, Na+, K+, NH4+, Rb+, and Cs+) relative to that of Na+ are plotted before (•) and after (○) UV irradiation of the channels. Permeability ratios were calculated from the Goldman-Hodgkin-Katz equation () using the reversal potentials obtained from the results in Fig. 14. (B) UV effect on RET channel currents carried by different monovalent cations. The ordinate shows the outward current amplitude after UV irradiation, I(D), divided by that before UV, I(0), for the results in Fig. 14.

Image published in: Middendorf TR et al. (2000)

© 2000 The Rockefeller University Press. Creative Commons Attribution-NonCommercial-ShareAlike license

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