title: The evolution of papain.
mesh_terms: D000595:Amino Acid Sequence; D000596:Amino Acids; D005075:Biological Evolution; D055598:Chemical Phenomena; D002621:Chemistry; D004792:Enzyme Precursors; D005796:Genes; D010206:Papain; D010455:Peptides
chemical_list: D000596:Amino Acids; D004792:Enzyme Precursors; D010455:Peptides; D010206:Papain