MacA, a Diheme c -Type Cytochrome Involved in Fe(III) Reduction by Geobacter sulfurreducens
| Autor: | Maddalena V. Coppi, Franz Kaufmann, Derek R. Lovley, Jessica E. Butler, Cinthia Núñez |
|---|---|
| Rok vydání: | 2004 |
| Předmět: |
Deltaproteobacteria
Cytochrome Physiology and Metabolism Molecular Sequence Data Cytochrome c Group Ferric Compounds Microbiology Electron Transport Electron transfer Bacterial Proteins Amino Acid Sequence Molecular Biology Geobacter sulfurreducens chemistry.chemical_classification biology Cytochrome c Periplasmic space Electron acceptor biology.organism_classification Electron transport chain Biochemistry chemistry biology.protein Oxidation-Reduction Gene Deletion Peroxidase |
| Zdroj: | Journal of Bacteriology. 186:4042-4045 |
| ISSN: | 1098-5530 0021-9193 |
| DOI: | 10.1128/jb.186.12.4042-4045.2004 |
| Popis: | A 36-kDa diheme c -type cytochrome abundant in Fe(III)-respiring Geobacter sulfurreducens , designated MacA, was more highly expressed during growth with Fe(III) as the electron acceptor than with fumarate. Although MacA has homology to proteins with in vitro peroxidase activity, deletion of macA had no impact on response to oxidative stress. However, the capacity for Fe(III) reduction was greatly diminished, indicating that MacA, which is predicted to be localized in the periplasm, is a key intermediate in electron transfer to Fe(III). |
| Databáze: | OpenAIRE |
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