title: The structure of collagen.
mesh_terms: D000596:Amino Acids / Q000032:analysis; D000818:Animals; D002417:Cattle; D055598:Chemical Phenomena; D002621:Chemistry; D003094:Collagen / Q000032:analysis; D004589:Electrophoresis, Disc; D008854:Microscopy, Electron; D008961:Models, Structural; D010783:Photometry; D011489:Protein Denaturation
chemical_list: D000596:Amino Acids; D003094:Collagen