# OC Root 2nd 3rd 4th 5th 6th PC Gene/Definition OC.662377 Bacteria.375057 Proteobacteria.221428 Betaproteobacteria.197083 Nitrosomonas.5109 Nitrosomonas_sp_.3977 nit.1355 nit:NAL212_1509 KilA,/APSES-type HTH DNA-binding domain