
Keywords: ATR; all-trans retinal; ACMA; 9-amino-6-chloro-2-methoxyacridine; CCCP; carbonyl cyanide m-chlorophenyl hydrazine; CaChR1; channelrhodopsin 1 from Chlamydomonas augustae; CaChR2; channelrhodopsin 2 from Chlamydomonas reinhardtii; CD; circular dichroism; C