title: Enzymes of aerobic respiration on iron.
abstract: Bacteria capable of aerobic respiration on ferrous ions are spread throughout eubacterial and archaebacterial phyla. Comparative spectroscopic analyses revealed that phylogenetically distinct organisms expressed copious quantities of spectrally distinct redox-active biomolecules during autotrophic growth on soluble iron. Thiobacillus ferroxidans, Leptospirillum ferrooxidans, Sulfobacillus thermosulfidooxidans, and Metallosphaera sedula possessed iron respiratory chains dominated by a blue copper protein, a novel red cytochrome, a novel yellow protein, and a novel yellow cytochrome, respectively. Further investigation of each type of respiratory chain will be necessary to deduce the advantages and disadvantages of each.
authors.affiliation: Department of Biochemistry, Meharry Medical College, Nashville, Tennessee 37208.
authors.forename: R C
authors.initials: RC
authors.lastname: Blake
authors.forename: E A
authors.initials: EA
authors.lastname: Shute
authors.forename: M M
authors.initials: MM
authors.lastname: Greenwood
authors.forename: G H
authors.initials: GH
authors.lastname: Spencer
authors.forename: W J
authors.initials: WJ
authors.lastname: Ingledew
mesh_terms: D000332:Aerobiosis; D000595:Amino Acid Sequence; D001400:Azurin / Q000031:analogs & derivatives / Q000235:genetics / Q000378:metabolism; D001419:Bacteria / Q000201:enzymology / Q000235:genetics / Q000378:metabolism*; D001426:Bacterial Proteins / Q000378:metabolism; D004579:Electron Transport; D007501:Iron / Q000378:metabolism*; D008969:Molecular Sequence Data; D010101:Oxygen Consumption; D010802:Phylogeny; D017386:Sequence Homology, Amino Acid; D013855:Thiobacillus / Q000201:enzymology
chemical_list: D001426:Bacterial Proteins; C012543:rusticyanin; D001400:Azurin; D007501:Iron