# OC Root	2nd	3rd	4th	5th	PC	Gene/Definition
OC.187476	Archaea.65361	Euryarchaeota.50393	Methanococcoides.1910	-	mbu.1068	mbu:Mbur_1218   Restriction modification system DNA specificity subunit; K01154 type I restriction enzyme, S subunit [EC:3.1.21.3]
OC.187477	Archaea.65799	Euryarchaeota.50839	Methanococcus.2312	Methanococcus_maripaludis.2170	mmx.50	mmx:MmarC6_0041   restriction modification system DNA specificity domain; K01154 type I restriction enzyme, S subunit [EC:3.1.21.3]
OC.187478	Archaea.73199	Euryarchaeota.58417	Methanosarcina.10523	-	mhor.3043	mhor:MSHOH_3126   Type I restriction-modification system, specificity subunit S; K01154 type I restriction enzyme, S subunit [EC:3.1.21.3]