Fig. 1: Electron uptake in the model electroactive microbe Shewanella oneidensis MR-1 cannot be fully explained by reversal of its extracellular electron-transfer pathway.
From: Identification of a pathway for electron uptake in Shewanella oneidensis
The canonical anodic extracellular electron-transport (EET) pathway for electron deposition is shown in light blue and the putative cathodic extracellular electron-uptake (EEU) pathway is shown in pink. Known electron-transfer pathways are denoted with solid lines, while speculated transfer pathways are shown as dashed lines. Two possible mechanisms for transfer of cathodic electrons from the Mtr EET complex to the ubiquinone pool and onto terminal cytochrome oxidases are highlighted. We speculate that two of the proteins identified in this work (SO_0400 and SO_3662) could form part of possible mechanism 2.
