# OC Root 2nd 3rd 4th PC Gene/Definition OC.226734 Bacteria.529533 Thermodesulfobacteria.271 - tid.748 tid:Thein_0772 Radical SAM domain protein; K22227 heme synthase OC.226734 Bacteria.529533 Thermodesulfobacteria.271 Thermodesulfobacterium.1574 top.417 top:TOPB45_0421 Radical SAM domain protein; K22227 heme synthase OC.226734 Bacteria.529533 Thermodesulfobacteria.271 - cthi.1173 cthi:THC_1234 radical SAM protein; K22227 heme synthase