# OC Root	2nd	3rd	4th	5th	6th	7th	PC	Gene/Definition
OC.374041	Bacteria.464484	Proteobacteria.126834	Gammaproteobacteria.253122	Gammaproteobacteria___Enterobacteria.62316	Citrobacter.11638	Citrobacter_amalonaticus.6644	cama.2497	cama:F384_12645   hydrogenase