# OC Root 2nd 3rd 4th PC Gene/Definition OC.187446 Archaea.63649 Euryarchaeota.48603 Methanocaldococcus.1890 mja.1742 mja:MJ_ECL41 hypothetical protein; K01154 type I restriction enzyme, S subunit [EC:3.1.21.3] OC.187446 Archaea.63649 Euryarchaeota.48603 Methanocaldococcus.1890 mvu.922 mvu:Metvu_0939 restriction modification system DNA specificity domain protein; K01154 type I restriction enzyme, S subunit [EC:3.1.21.3]