title: Gene duplications in the structural evolution of chymotrypsin.
mesh_terms: D005075:Biological Evolution; D002918:Chymotrypsin / Q000235:genetics*; D005796:Genes; D006860:Hydrogen Bonding; D008956:Models, Chemical; D008958:Models, Molecular; D010447:Peptide Hydrolases; D011487:Protein Conformation
chemical_list: D010447:Peptide Hydrolases; D002918:Chymotrypsin