# OC Root	2nd	3rd	4th	5th	PC	Gene/Definition
OC.189494	Bacteria.356249	Proteobacteria.608579	Deltaproteobacteria.122912	-	hoh.2474	hoh:Hoch_3028   sodium/hydrogen exchanger
OC.189497	Bacteria.522715	Proteobacteria.247323	Deltaproteobacteria.42971	Pelobacter.5496	ppd.524	ppd:Ppro_0416   sodium/proton antiporter, CPA1 family
OC.189497	Bacteria.522715	Proteobacteria.247323	Deltaproteobacteria.42971	-	sfu.1504	sfu:Sfum_1460   sodium/hydrogen exchanger