Elsevier Inc. phosphatidylcholine light --+> 11-cis-retinal Rdh12 11-cis-retinal ---> all-trans-retinal light 11-cis-retinal NADH NAD+ 11-cis-retinol retinyl ester retinol all-trans-retinal NADP+ NADPH ATP ADP Rbp1 ---- retinol 11-cis-retinal ---- cone opsins cone opsins Rdh8 Rbp1 Rdh10 Rdh5 Rdh11 NAD+ ---> NADH 11-cis-retinol ---> 11-cis-retinal NADPH ---> NADP+ all-trans-retinal ---> retinol Rlbp1 Abca4 Rbp3 Lrat Rpe65 11-cis-retinal ---- Rho visual phototransduction pathway Rho