Ferredoxin-dependent glutamate synthase (Fd-GltS) is reported as an enzymatic bioelectrocatalyst for the first time. By configuring mediated electrochemical interfaces with mediators of different redox potentials, we realize bioelectrosynthesis or bioelectrooxidation of glutamate with recombinant Fd-GltS from cyanobacteria. Particularly, bioelectrocatalytic oxidation of glutamate by Fd-GltS is demonstrated to be oxygen independent. This study reinforces a new catalytic option for developing enzymatic bioelectronic devices for powering, sensing or synthesis.
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| http://dx.doi.org/10.1021/jacs.8b08020 | DOI Listing |
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