# OC Root 2nd 3rd 4th 5th PC Gene/Definition OC.187468 Archaea.71824 Euryarchaeota.57024 Methanosarcina.8596 Methanosarcina_sp_.3098 mef.1195 mef:MSWH1_1219 Type I restriction-modification system, specificity subunit S; K01154 type I restriction enzyme, S subunit [EC:3.1.21.3]