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. 2020 Mar 25;152(5):e201912489. doi: 10.1085/jgp.201912489

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© 2020 Walther et al.

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Figure S2. — Light-induced APs in Xenopus oocytes using the cardiac Na⁺ channel Na_v1.5. (A) Nine superimposed current-clamp recordings in oocytes expressing Na_v1.5 and β1-ChR2. (B) Seven superimposed current-clamp recordings in oocytes expressing Na_v1.5, β1-ChR2, and K_v2.1. Similarly, as observed for Na_v1.4-injected oocytes, coexpression of K_v2.1 led to a pronounced AP shortening. For detailed statistics, see Table S2. The blue-light flash is indicated by an arrow.