title: Heme-copper oxidase family structure of Magnetospirillum magnetotacticum 'cytochrome a1'-like hemoprotein without cytochrome c oxidase activity.
abstract: The genes encoding 'cytochrome a1'-like hemoprotein of Magnetospirillum magnetotacticum were identified and sequenced. Three ORFs, mcalI, mcaI and hosA, were included in the sequenced region. The six histidine residues which were predicted to associate with the prosthetic cofactors of heme-copper oxidase superfamily were conserved in the hemoprotein. However, none of the amino acid residues which were proposed to participate in the oxygen-reducing and the coupled proton pumping reactions in cytochrome c oxidase were at all conserved in the hemoprotein.
authors.affiliation: Department of Biology, Faculty of Science, Kanazawa University, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Tanimura
authors.forename: Y
authors.initials: Y
authors.lastname: Fukumori
mesh_terms: D000595:Amino Acid Sequence; D000596:Amino Acids / Q000032:analysis; D001483:Base Sequence; D017936:Cytochrome a Group / Q000737:chemistry / Q000235:genetics* / Q000378:metabolism; D045263:Cytochromes a1; D008969:Molecular Sequence Data; D010084:Oxidation-Reduction; D010088:Oxidoreductases / Q000737:chemistry / Q000235:genetics* / Q000378:metabolism; D012244:Rhodospirillaceae / Q000201:enzymology* / Q000235:genetics*; D016415:Sequence Alignment
chemical_list: D000596:Amino Acids; D017936:Cytochrome a Group; D045263:Cytochromes a1; D010088:Oxidoreductases; C024748:copper oxidase