# OC Root 2nd 3rd 4th PC Gene/Definition OC.226731 Bacteria.529534 Proteobacteria.553464 Deltaproteobacteria.20178 dao.454 dao:Desac_0397 Radical SAM domain protein; K22227 heme synthase OC.226732 Bacteria.1103104 Proteobacteria.604583 Deltaproteobacteria.117657 dti.2736 dti:Desti_2956 putative heme d1 biosynthesis radical SAM protein NirJ2; K22227 heme synthase