title: Isolation of three isochromic forms of rhodopsin in digitonin.
mesh_terms: D000818:Animals; D002417:Cattle; D055598:Chemical Phenomena; D002621:Chemistry; D002845:Chromatography / Q000379:methods; D004071:Digitalis Glycosides; D004072:Digitonin; D010786:Photoreceptor Cells / Q000032:analysis; D012168:Retinal Pigments / Q000302:isolation & purification*; D012243:Rhodopsin / Q000302:isolation & purification*
chemical_list: D004071:Digitalis Glycosides; D012168:Retinal Pigments; D012243:Rhodopsin; D004072:Digitonin