Part of four member fumarate reductase enzyme complex FrdABCD which catalyzes the reduction of fumarate to succinate during anaerobic respiration; FrdAB are the catalytic subcomplex consisting of a flavoprotein subunit and an iron-sulfur subunit, respectively; FrdCD are the membrane components which interact with quinone and are involved in electron transfer; the catalytic subunits are similar to succinate dehydrogenase SdhAB; Derived by automated computational analysis using gene prediction method: Protein Homology; Belongs to the FAD-dependent oxidoreductase 2 family. FRD/SDH subfamily.

Hypothetical protein; Derived by automated computational analysis using gene prediction method: Protein Homology.

Succinate dehydrogenase; Derived by automated computational analysis using gene prediction method: Protein Homology.

Part of four member succinate dehydrogenase enzyme complex that forms a trimeric complex (trimer of tetramers); SdhA/B are the catalytic subcomplex and can exhibit succinate dehydrogenase activity in the absence of SdhC/D which are the membrane components and form cytochrome b556; SdhC binds ubiquinone; oxidizes succinate to fumarate while reducing ubiquinone to ubiquinol; the catalytic subunits are similar to fumarate reductase; Derived by automated computational analysis using gene prediction method: Protein Homology.

Transcriptional regulator; Oxidizes proline to glutamate for use as a carbon and nitrogen source; In the C-terminal section; belongs to the aldehyde dehydrogenase family.

Glycerol-3-phosphate dehydrogenase; In Escherichia coli this homodimeric enzyme is expressed under aerobic conditions; anaerobic expression is repressed by the arcAB system; converts sn-glycerol-3-phosphate and ubiquinone-8 to dihydroxy acetone phosphate and ubiquinol-8; associates with the cytoplasmic membrane; Derived by automated computational analysis using gene prediction method: Protein Homology; Belongs to the FAD-dependent glycerol-3-phosphate dehydrogenase family.