title: The soluble c-type cytochromes from the bacterium Aquaspirillum itersonii. The complete amino acid sequence of the cytochrome c-550.
abstract: A complete amino acid sequence is proposed for the cytochrome c-550 isolated from the gram-negative chemo-organotrophic bacterium Aquaspirillum itersonii. The sequence, a single polypeptide chain of 111 residues, was deduced from the sequences of peptides obtained by tryptic, thermolytic or chymotryptic digestion. The cytochrome shows a high degree of sequence homology with the cytochrome c2 from the photosynthetic bacterium Rhodospirillum rubrum, and the evolutionary implications of this are considered.
mesh_terms: D000595:Amino Acid Sequence; D000596:Amino Acids / Q000032:analysis; D003574:Cytochrome c Group / Q000302:isolation & purification*; D012247:Rhodospirillum rubrum / Q000201:enzymology; D012995:Solubility; D013139:Spirillum / Q000201:enzymology*
chemical_list: D000596:Amino Acids; D003574:Cytochrome c Group; C031732:cytochrome C-550