# OC Root 2nd 3rd 4th PC Gene/Definition OC.509137 Archaea.16229 Euryarchaeota.3322 Methanoregula.691 mbn.201 mbn:Mboo_0116 PEGA domain protein OC.509137 Archaea.16229 Euryarchaeota.3322 Methanoregula.691 mfo.341 mfo:Metfor_0244 PEGA domain-containing protein