title: Proteins.
mesh_terms: D000595:Amino Acid Sequence; D000596:Amino Acids / Q000378:metabolism; D005075:Biological Evolution; D004247:DNA / Q000235:genetics; D004798:Enzymes / Q000235:genetics / Q000378:metabolism / Q000502:physiology; D006801:Humans; D006860:Hydrogen Bonding; D011487:Protein Conformation; D011506:Proteins / Q000235:genetics / Q000378:metabolism* / Q000502:physiology; D014961:X-Ray Diffraction
chemical_list: D000596:Amino Acids; D004798:Enzymes; D011506:Proteins; D004247:DNA