title: Protein evolution. How far can sequences diverge?
authors.forename: C
authors.initials: C
authors.lastname: Chothia
authors.forename: M
authors.initials: M
authors.lastname: Gerstein
mesh_terms: D001426:Bacterial Proteins; D017122:Bacteriophage T4 / Q000201:enzymology; D019143:Evolution, Molecular; D009113:Muramidase / Q000737:chemistry / Q000235:genetics; D009154:Mutation; D011487:Protein Conformation; D011506:Proteins / Q000737:chemistry* / Q000235:genetics; D012260:Ribonucleases / Q000737:chemistry / Q000235:genetics
chemical_list: D001426:Bacterial Proteins; D011506:Proteins; D012260:Ribonucleases; C019760:Bacillus amyloliquefaciens ribonuclease; D009113:Muramidase