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Results 1 - 3 of 3

EC Number	Natural Substrates	Commentary (Nat. Sub.)
1.1.98.4	menaquinone + reduced coenzyme F420	the FqoF protein forms the input device of the protein complex which oxidizes coenzyme F420H2. Thus, this polypeptide replaces the NADH-oxidizing module of NADH dehydrogenases of bacteria which are not found in Archaeoglobus fulgidus. Then the electrons are channeled to the membrane-associated fragment composed of FqoBCDI, which is homologous to the corresponding module of complex I. As the subunits FqoAHJKLMN are highly hydrophobic and are related to polypeptides comprising the membrane fragment of complex I, they may form the membrane-integral module of the F420H2:quinone oxidoreductase that is responsible for the reduction of a special menaquinone found in the cytoplasmic membrane of Archaeoglobus fulgidus
1.1.98.4	menaquinone + reduced coenzyme F420	the physiological electron acceptor of the enzyme complex is most likely the menaquinone found in the membrane fraction of Archaeoglobus fulgidus. The reduction of menaquinone by F420H2 in Archaeoglobus fulgidus is catalyzed by a membrane-bound complex composed of at least seven different subunits. It contains 1-2 mol FAD and8 mol Fe-S/mol complex. The complex subunit composition indicates that the F420H2:quinone oxidoreductase complex from Archaeoglobus fulgidus is functionally analogous to the NADH:quinone oxidoreductase complex from mitochondria and bacteria
1.1.98.4	more	the enzyme is involved in the reduction of heterodisulfide

Results 1 - 3 of 3

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Release 2023.1 (January 2023)