Repetitions in the polypeptide sequence of cytochromes.
D055598:Chemical Phenomena; D002621:Chemistry; D002844:Chromatium; D003580:Cytochromes; D005815:Genetic Code; D008967:Molecular Biology; D009491:Neurospora; D010455:Peptides
D003580:Cytochromes; D010455:Peptides