Fig. 2 | Nature Communications

Fig. 2

From: Modular engineering to increase intracellular NAD(H/+) promotes rate of extracellular electron transfer of Shewanella oneidensis

Fig. 2

Optimization of the de novo biosynthesis pathway (Module 1) to enhance the extracellular electron transfer (EET) rate. a A depiction of the de novo biosynthesis pathway of NAD+ (Module 1). b Plasmids that included the assemblage of genes (nadA, nadC, and nadB) in Module 1. c Voltage output in microbial fuel cells (MFCs) of the above S. oneidensis recombinant strains. d Quantitative measurements of intracellular NAD+, NADH, and total NAD(H/+) levels of these strains under anaerobic cultures. The error bars represent the standard deviation from three independent experiments

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