# OC Root 2nd 3rd 4th 5th PC Gene/Definition OC.226734 Bacteria.529533 Proteobacteria.265160 Deltaproteobacteria.20176 Desulfococcus.1754 dml.1248 dml:Dmul_12470 pqqE; PqqE: predicted coenzyme PQQ synthesis protein E; K22227 heme synthase OC.226734 Bacteria.529533 Proteobacteria.265160 Deltaproteobacteria.20176 Desulfococcus.4775 dol.1246 dol:Dole_1223 Radical SAM domain protein; K22227 heme synthase