title: Variability in the tertiary structure of alpha-chymotrypsin at 2.8-A resolution.
mesh_terms: D000595:Amino Acid Sequence; D001665:Binding Sites; D055598:Chemical Phenomena; D002621:Chemistry; D002918:Chymotrypsin / Q000037:antagonists & inhibitors; D004583:Electrons; D006046:Gold; D006863:Hydrogen-Ion Concentration; D046911:Macromolecular Substances; D008628:Mercury; D008961:Models, Structural; D010984:Platinum; D011487:Protein Conformation; D012643:Selenium; D012694:Serine; D013431:Sulfates; D014443:Tyrosine; D014501:Uranium; D014961:X-Ray Diffraction
chemical_list: D046911:Macromolecular Substances; D013431:Sulfates; D014443:Tyrosine; D012694:Serine; D010984:Platinum; D014501:Uranium; D006046:Gold; D002918:Chymotrypsin; D008628:Mercury; D012643:Selenium