Repeating sequences and gene duplication in proteins.
D000595:Amino Acid Sequence; D001426:Bacterial Proteins; D002268:Carboxypeptidases; D002918:Chymotrypsin; D010450:Endopeptidases; D005796:Genes; D005815:Genetic Code; D006454:Hemoglobins; D006657:Histones; D009113:Muramidase; D009211:Myoglobin; D010206:Papain; D011336:Probability; D012260:Ribonucleases
D001426:Bacterial Proteins; D006454:Hemoglobins; D006657:Histones; D009211:Myoglobin; D012260:Ribonucleases; D009113:Muramidase; D002268:Carboxypeptidases; D010450:Endopeptidases; D002918:Chymotrypsin; D010206:Papain