Electron Transfer from Heme bL to the [3Fe-4S] Cluster of Escherichia coli Nitrate Reductase A (NarGHI)

We have investigated the functional relationship between three of the prosthetic groups of Escherichia coli nitrate reductase A (NarGHI): the two hemes of the membrane anchor subunit (NarI) and the [3Fe-4S] cluster of the electron-transfer subunit (NarH). In two site-directed mutants (NarGHI(H56R) a...

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Veröffentlicht in:	Biochemistry (Easton) 2001-05, Vol.40 (17), p.5260-5268
Hauptverfasser:	ROTHERY, Richard A., BLASCO, Francis, WEINER, Joel H.
Format:	Artikel
Sprache:	eng
Schlagworte:	Benzoquinones - chemistry Dimerization Electron Spin Resonance Spectroscopy Electron Transport - genetics Enzyme Inhibitors - chemistry Escherichia coli - enzymology Escherichia coli - genetics Heme - antagonists & inhibitors Heme - chemistry Heme - metabolism Holoenzymes - genetics Holoenzymes - metabolism Hydrogen-Ion Concentration Hydroquinones - chemistry Hydroxyquinolines - chemistry Iron-Sulfur Proteins - antagonists & inhibitors Iron-Sulfur Proteins - genetics Iron-Sulfur Proteins - metabolism Multigene Family Mutagenesis, Site-Directed Nitrate Reductases - antagonists & inhibitors Nitrate Reductases - genetics Nitrate Reductases - metabolism Oxidation-Reduction - drug effects Polyenes - chemistry Potentiometry Protein Binding Reducing Agents - chemistry Spectrophotometry
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