title: Non-constant evolution rates in amino acid sequences of guinea pig, chinchilla and coypu pancreatic ribonucleases.
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D005075:Biological Evolution; D002682:Chinchilla; D051379:Mice; D010179:Pancreas / Q000201:enzymology*; D051381:Rats; D012260:Ribonucleases / Q000032:analysis*; D012377:Rodentia / Q000378:metabolism*
chemical_list: D012260:Ribonucleases