The triheme cytochrome PpcF from Geobacter metallireducens exhibits distinct redox properties.

ABSTRACT: Electrogenic bacteria, such as Geobacter, can couple the oxidation of carbon sources to the reduction of extracellular electron acceptors; such acceptors include toxic and radioactive metals, as well as electrode surfaces, making Geobacter a suitable candidate for applied use in bioremediation and bioenergy generation. Geobacter metallireducens is more promising in this regard than the better studied Geobacter sulfurreducens, as it has more efficient Fe (III) reduction rates and can convert nitrate to ammonia. The operon responsible for nitrate reductase activity in G. metallireducens includes the gene encoding the cytochrome PpcF, which was proposed to exchange electrons with nitrate reductase. In the present work, we perform a biochemical and a biophysi

SUBMITTER: Ferreira MR 

PROVIDER: S-EPMC6275270 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature