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. Author manuscript; available in PMC: 2022 Jan 1.
Published in final edited form as: Prog Retin Eye Res. 2020 Apr 25;80:100864. doi: 10.1016/j.preteyeres.2020.100864

Figure 5. NinaB and chromophore production in arthropods.

Figure 5.

(A) Scheme of an omatidium of the insect compound eyes. (B) Electromicrographs of cross sections of rhabdomers immuno-gold stained for rhodopsin 1 (Rh1 encoded by the ninaE gene) of wild type and ninaB mutant flies. Note that ninaB360d flies lack Rh1. Photographs of wild type and ninaB360d mutants on a white eye genetic background. The eyes of ninaB360d flies appear yellow because of carotenoid accumulation. (C) Reaction catalyzed by NinaB protein with zeaxanthin. The sites for geometric isomerization and oxidative cleavage are respectively highlighted by yellow and red color.