title: Orientation of aromatic residues in rhodopsin. Rotation of one tryptophan upon the meta I to meta II transition afer illumination.
mesh_terms: D000818:Animals; D001001:Anura; D002417:Cattle; D002942:Circular Dichroism; D055590:Electromagnetic Phenomena; D008027:Light; D012168:Retinal Pigments; D012243:Rhodopsin; D014364:Tryptophan; D014466:Ultraviolet Rays
chemical_list: D012168:Retinal Pigments; D014364:Tryptophan; D012243:Rhodopsin