# OC Root	2nd	3rd	4th	PC	Gene/Definition
OC.187428	Archaea.91777	Thaumarchaeota.4852	Nitrosopumilus.4107	nmr.609	nmr:Nmar_0605   restriction modification system DNA specificity domain; K01154 type I restriction enzyme, S subunit [EC:3.1.21.3]