# OC Root 2nd 3rd 4th PC Gene/Definition OC.187294 Bacteria.184974 Proteobacteria.795164 Gammaproteobacteria.464490 ttu.3450 ttu:TERTU_3912 putative type I restriction-modification system specificity subunit; K01154 type I restriction enzyme, S subunit [EC:3.1.21.3]