# OC Root 2nd 3rd 4th 5th PC Gene/Definition OC.187423 Archaea.71830 Euryarchaeota.57030 Methanosarcina.8602 Methanosarcina_sp_.3114 mef.1434 mef:MSWH1_1463 Type I restriction-modification system, specificity subunit S; K01154 type I restriction enzyme, S subunit [EC:3.1.21.3]