# OC Root 2nd 3rd 4th 5th PC Gene/Definition OC.110806 Bacteria.456720 Firmicutes.234322 Firmicutes___Clostridia.73327 Thermodesulfobium.467 tnr.1471 tnr:Thena_1534 Nitrite reductase (NAD(P)H) OC.110806 Bacteria.456720 Firmicutes.234322 Firmicutes___Clostridia.73327 Thermodesulfobium.467 taci.1445 taci:TDSAC_1502 Nitrite/Sulfite reductase ferredoxin-like half domain-containing protein