Cytochrome c oxidase is ubiquitous enzyme involved in the terminal step of respiratory electron transfer process.
ATP is produced in the respiratory electron transfer chain and oxidative consumption of NADH occurs when electricity generation is high in Geobacter species (Meng et al. 2013).
The reduction of selenite is presumed to be the result of the respiratory electron transfer system and the soluble selenite reductases of the bacterial system.
Coenzyme Q10 (CoQ10), as an essential electron carrier in the aerobic respiratory electron transfer system, has been proven to be an effective compound in health care and disease prevention.
The reduction of the mitochondrial respiratory chain transfer efficiency, electronic leak, and ATP synthesis decline often occurred in aging, leading to mitochondrial abnormalities and alteration of reactive oxygen species levels (Green et al., 2011; Vendelbo and Nair, 2011).
In electrogenic chemotrophs such as Geobacter sulfurreductens, electrons are derived from oxidation of organic compounds and transported via a respiratory electron transfer chain (R-ETC) to extracellular terminal electron acceptors [3].
While Flv3 protein was found to be completely soluble, we found that the Flv2 and Flv4 proteins are tightly associated with the membrane and therefore might potentially be involved in photosynthetic or respiratory electron transfer routes.
The mechanism responsible for electrogenic activity in cyanobacteria appears to be fundamentally different from the one exploited in previously discovered electrogenic bacteria, such as Geobacter, where electrons are derived from oxidation of organic compounds and transported via a respiratory electron transfer chain (R-ETC) [3], [4].
These properties could conceivably be explored for practical applications by genetically engineering strains or by the functional optimization of key respiratory electron transfer chain components.
Microarray/proteomic analysis also suggests that dysfunction of SO1377 affects the proteins involved in respiratory electron transfer and thus respiration functions.
