The six subunit complex RnfABCDGE in Rhodobacter capsulatus encodes an apparent NADH oxidoreductase responsible for electron transport to nitrogenase, necessary for nitrogen fixation. A closely related complex in E. coli, RsxABCDGE (Reducer of SoxR), reduces the 2Fe-2S-containing superoxide sensor SoxR, active as a transcription factor when oxidized. This family of putative NADH oxidoreductase complexes exists in many of the same species as the related NQR, a Na(+)-translocating NADH-quinone reductase, but is distinct. This model describes the C subunit.
GO Terms:- Molecular Function:
- electron transfer activity (GO:0009055)
- Cellular Component:
- membrane (GO:0016020)
- Molecular Function:
- 4 iron, 4 sulfur cluster binding (GO:0051539)
- Date:
- 2024-05-30