title: Vibrational spectrum of the unordered polypeptide chain: a Raman study of feather keratin.
mesh_terms: D000577:Amides / Q000032:analysis; D000818:Animals; D004372:Ducks; D005241:Feathers / Q000032:analysis*; D007633:Keratins; D007834:Lasers; D011487:Protein Conformation; D012542:Scattering, Radiation; D013057:Spectrum Analysis
chemical_list: D000577:Amides; D007633:Keratins