# OC Root 2nd 3rd 4th 5th PC Gene/Definition OC.187418 Archaea.170 Euryarchaeota.62140 Thermococcus.8777 Thermococcus_sp_.2821 the.233 the:GQS_01165 restriction modification system DNA specificity subunit; K01154 type I restriction enzyme, S subunit [EC:3.1.21.3]