title: Low-temperature absorption and circular dichroism studies of phytochrome.
mesh_terms: D000645:Ammonium Sulfate; D001663:Bilirubin; D002130:Calcium Phosphates; D011232:Chemical Precipitation; D002845:Chromatography; D002848:Chromatography, DEAE-Cellulose; D002942:Circular Dichroism; D003080:Cold Temperature; D005990:Glycerol; D007536:Isomerism; D008027:Light; D008433:Mathematics; D008956:Models, Chemical; D008968:Molecular Conformation; D010940:Plant Proteins / Q000302:isolation & purification / Q000528:radiation effects; D011758:Pyrroles; D011830:Radiation Effects; D013053:Spectrophotometry
chemical_list: D002130:Calcium Phosphates; D010940:Plant Proteins; D011758:Pyrroles; D005990:Glycerol; D001663:Bilirubin; D000645:Ammonium Sulfate