title: Early events in visual transduction in Limulus photoreceptors.
mesh_terms: D000818:Animals; D055592:Biophysical Phenomena; D001703:Biophysics; D002118:Calcium / Q000502:physiology; D006737:Horseshoe Crabs / Q000502:physiology*; D066298:In Vitro Techniques; D007700:Kinetics; D008954:Models, Biological; D010766:Phosphorylation; D010786:Photoreceptor Cells / Q000502:physiology*; D012243:Rhodopsin / Q000031:analogs & derivatives / Q000502:physiology; D014785:Vision, Ocular / Q000502:physiology*
chemical_list: C013110:metarhodopsins; D012243:Rhodopsin; D002118:Calcium