# OC Root 2nd 3rd 4th 5th PC Gene/Definition OC.456190 Bacteria.885357 Firmicutes.274314 Firmicutes___Clostridia.141377 Sulfobacillus.2402 say.3602 say:TPY_3749 Formate hydrogenlyase subunit 7 OC.456190 Bacteria.885357 Firmicutes.274314 Firmicutes___Clostridia.141377 Sulfobacillus.2402 sap.3273 sap:Sulac_3444 NADH ubiquinone oxidoreductase 20 kDa subunit