gpb:HDN1F_15150 K01153 type I restriction enzyme, R subunit [EC:3.1.21.3] | (GenBank) hsdR3; Type I restriction-modification system restriction subunit gpb:HDN1F_15160 K03427 type I restriction enzyme M protein [EC:2.1.1.72] | (GenBank) hsdM3; Type I restriction-modification system methyltransferase subunit