# OC Root	2nd	3rd	4th	PC	Gene/Definition
OC.110794	Bacteria.458401	Firmicutes.134522	Firmicutes___Clostridia.85294	dae.1539	dae:Dtox_1634   nitrite and sulphite reductase 4Fe-4S region
OC.110794	Bacteria.458401	Firmicutes.134522	Firmicutes___Clostridia.85294	pth.1528	pth:PTH_1506   NirB; NAD(P)H-nitrite reductase
OC.110794	Bacteria.458401	Firmicutes.134522	Firmicutes___Clostridia.85294	hhl.355	hhl:Halha_0311   NAD(P)H-nitrite reductase