Feuda R, Menon AK, Göpfert MC
Molecular Biology and Evolution
Mol Biol Evol. 2022 Feb 10:msac033.
Opsins, the protein moieties of animal visual photo-pigments, have emerged as moonlighting proteins with diverse, light-dependent and -independent physiological functions. This raises the need to revise some basic assumptions concerning opsin expression, structure, classification, and evolution.