# OC Root 2nd 3rd 4th 5th PC Gene/Definition OC.187432 Archaea.70679 Euryarchaeota.55868 Methanosarcina.7215 Methanosarcina_mazei.3387 mma.2262 mma:MM_2293 type I restriction-modification system specificity subunit; K01154 type I restriction enzyme, S subunit [EC:3.1.21.3]