The nature of the retinaldehyde-opsin linkage.
D000818:Animals; D002417:Cattle; D055598:Chemical Phenomena; D002621:Chemistry; D008239:Lysine; D012168:Retinal Pigments / Q000032:analysis*; D013057:Spectrum Analysis; D014801:Vitamin A / Q000032:analysis*
D012168:Retinal Pigments; D014801:Vitamin A; D008239:Lysine