# OC Root 2nd 3rd 4th PC Gene/Definition OC.508243 Archaea.26417 Euryarchaeota.29394 Methanosaeta.1363 mtp.560 mtp:Mthe_0564 Cobyrinic acid a,c-diamide synthase OC.508243 Archaea.26417 Euryarchaeota.29394 Methanosaeta.1363 mcj.668 mcj:MCON_0698 iron sulfur cluster/nucleotide binding domain protein OC.508243 Archaea.26417 Euryarchaeota.29394 Methanosaeta.1363 mhi.1441 mhi:Mhar_1498 Iron sulfur cluster/nucleotide binding domain protein