title: The molecular evolution of pancreatic ribonuclease.
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D001188:Artiodactyla; D005075:Biological Evolution; D002591:Cetacea; D006736:Horses; D009154:Mutation; D010179:Pancreas / Q000201:enzymology*; D011487:Protein Conformation; D012104:Reptiles; D012260:Ribonucleases; D012377:Rodentia
chemical_list: D012260:Ribonucleases