# OC Root 2nd 3rd 4th 5th 6th PC Gene/Definition OC.20847 Bacteria.490573 Proteobacteria.267430 Deltaproteobacteria.24491 Desulfovibrio.11501 Desulfovibrio_desulfuricans.1390 ddn.1388 ddn:DND132_1392 fumarate reductase/succinate dehydrogenase flavoprotein domain protein; K03388 heterodisulfide reductase subunit A2 [EC:1.8.7.3 1.8.98.4 1.8.98.5 1.8.98.6] OC.20847 Bacteria.490573 Proteobacteria.267430 Deltaproteobacteria.24491 Desulfovibrio.15606 - daf.1815 daf:Desaf_1866 fumarate reductase/succinate dehydrogenase flavoprotein domain protein; K03388 heterodisulfide reductase subunit A2 [EC:1.8.7.3 1.8.98.4 1.8.98.5 1.8.98.6]