title: Infrared study on the protonation of Schiff base with tyrosine: a model study for bacteriorhodopsin chromophore.
mesh_terms: D001436:Bacteriorhodopsins / Q000378:metabolism*; D002863:Chromogenic Compounds / Q000378:metabolism; D007259:Infrared Rays; D008956:Models, Chemical; D011522:Protons; D012545:Schiff Bases / Q000378:metabolism*; D014443:Tyrosine / Q000494:pharmacology*
chemical_list: D002863:Chromogenic Compounds; D011522:Protons; D012545:Schiff Bases; D014443:Tyrosine; D001436:Bacteriorhodopsins