# OC Root	2nd	3rd	4th	PC	Gene/Definition
OC.12045	Bacteria.10427	Planctomycetes.1559	-	rba.6302	rba:RB8745   nitrogen fixation protein anfA (sigma-54 dependendent transcriptional regulator
OC.12045	Bacteria.10427	Planctomycetes.1558	Pirellula.237	psl.4026	psl:Psta_4161   sigma54 specific transcriptional regulator, Fis family
OC.12045	Bacteria.10427	Planctomycetes.1558	Pirellula.237	pir.2004	pir:VN12_10365   vnfA_1; Nitrogen fixation protein VnfA