An Ancient Pathway Combining Carbon Dioxide Fixation with the Generation and Utilization of a Sodium Ion Gradient for ATP Synthesis
Figure 4
Subunit composition and model of the methylene-THF reductase of A. woodii.
Panel A depicts an indirect coupling via NADH+H+ and the small subunit of the methylene-THF reductase (MetV) as electron input module, panel B a direct coupling of the methylene-THF reductase to the Rnf complex via RnfC2.