title: N-terminal amino acid sequence of cytochrome c-552 from Nitrosomonas europaea.
abstract: Nitrosomonas europaea is an ammonia-oxidizing bacterium which contains multiple c-type cytochromes. Few of these components have been assigned physiological roles, but on the basis of molecular weight and redox potential cytochrome c-552 has been considered to be an analogue of the mitochondrial cytochrome-c family of proteins. We present the N-terminal amino acid sequence (47 residues) of cytochrome c-552 and show that this protein is most closely related to the group of small cytochrome-c components from pseudomonads (cytochromes c-551) and is probably evolutionarily distant from the analagous protein (cytochrome c-550) from the nitrite-oxidizing bacterium Nitrobacter agilis.
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D001395:Azotobacter / Q000378:metabolism; D003574:Cytochrome c Group / Q000302:isolation & purification*; D004591:Electrophoresis, Polyacrylamide Gel; D006736:Horses; D009206:Myocardium / Q000378:metabolism; D009576:Nitrobacter / Q000378:metabolism; D009606:Nitrosomonas / Q000378:metabolism*; D011549:Pseudomonas / Q000378:metabolism; D012246:Rhodospirillum / Q000378:metabolism; D013045:Species Specificity
chemical_list: D003574:Cytochrome c Group; C083951:cytochrome c553; C022302:cytochrome C-552