title: Hydrogen metabolism in the hyperthermophilic bacterium Aquifex aeolicus.
abstract: Aquifex aeolicus is a microaerophilic, hydrogen-oxidizing, hyperthermophilic bacterium containing three [NiFe] hydrogenases. Two of these three enzymes (one membrane-bound and one soluble) have been purified and characterized. The Aquifex hydrogenases are thermostable and tolerant to oxygen. A cellular function for the three hydrogenases has been proposed. The two membrane-bound periplasmic hydrogenases may function in energy conservation, whereas the soluble cytoplasmic hydrogenase is probably involved in the CO(2) fixation pathway.
authors.affiliation: Laboratoire de Bioénergétique et Ingénierie des Protéines (BIP), IBSM-CNRS, 31 chemin Joseph Aiguier, 13402 Marseille cedex 20, France.
authors.forename: M
authors.initials: M
authors.lastname: Guiral
authors.forename: C
authors.initials: C
authors.lastname: Aubert
authors.forename: M-T
authors.initials: MT
authors.lastname: Giudici-Orticoni
mesh_terms: D001419:Bacteria / Q000378:metabolism*; D004578:Electron Spin Resonance Spectroscopy; D006859:Hydrogen / Q000378:metabolism*; D010100:Oxygen / Q000378:metabolism; D013379:Substrate Specificity
chemical_list: D006859:Hydrogen; D010100:Oxygen