# OC Root 2nd 3rd 4th 5th PC Gene/Definition OC.226712 Bacteria.346089 Firmicutes.102117 Firmicutes___Clostridia.145166 Thermodesulfobium.142 tnr.1161 tnr:Thena_1214 Radical SAM domain protein OC.226712 Bacteria.346089 Firmicutes.102117 Firmicutes___Clostridia.145166 Thermodesulfobium.142 taci.1139 taci:TDSAC_1189 putative heme d1 biosynthesis radical SAM protein NirJ2