# OC Root	2nd	3rd	4th	PC	Gene/Definition
OC.187416	Archaea.180	Crenarchaeota.17096	Staphylothermus.1730	smr.749	smr:Smar_0762   restriction modification system DNA specificity domain; K01154 type I restriction enzyme, S subunit [EC:3.1.21.3]