Figure 3: Photocycle of NaR in proteoliposomes.

(A) Differential optical spectra of light-induced transitions in NaR. Black curve, NaR K; blue curve, K → (L↔M); red curve, (L↔M) → O; green curve, O → NaR. (B) Scheme of NaR photocycle in proteoliposomes at [Na⁺] = 200 mM.