# OC Root 2nd 3rd 4th PC Gene/Definition OC.226734 Bacteria.529533 Proteobacteria.265160 Deltaproteobacteria.20176 dto.2110 dto:TOL2_C22120 ppqE; PqqE: predicted coenzyme PQQ synthesis protein E; K22227 heme synthase OC.226740 Bacteria.529846 Proteobacteria.266816 Deltaproteobacteria.23223 dto.2108 dto:TOL2_C22100 radical SAM domain protein, related to coenzyme PQQ biosynthesis protein E; K22226 Fe-coproporphyrin III synthase