# OC Root 2nd 3rd 4th 5th PC Gene/Definition OC.187485 Archaea.71454 Euryarchaeota.56647 Methanosarcina.8116 Methanosarcina_siciliae.3990 msj.1551 msj:MSSAC_1574 Type I restriction-modification system, specificity subunit S; K01154 type I restriction enzyme, S subunit [EC:3.1.21.3]