SEED Subsystem: Nitrogen fixation in Azospirillum brasilense Sp245

Role	Gene	Name
4Fe-4S ferredoxin, nitrogenase-associated	AZOBR_RS05525
	AZOBR_RS05660
AnfO protein, required for Mo- and V-independent nitrogenase	No genes
AnfR protein, required for Mo- and V-independent nitrogenase	No genes
Cysteine desulfurase (EC 2.8.1.7), NifS subfamily	AZOBR_RS05500
Homocitrate synthase (EC 2.3.3.14)	AZOBR_RS05495
Homocitrate synthase alpha subunit (EC 2.3.3.14)	No genes
Homocitrate synthase omega subunit (EC 2.3.3.14)	No genes
Iron-sulfur cluster assembly scaffold protein NifU	AZOBR_RS05505
LRV (FeS)4 cluster domain protein clustered with nitrogenase cofactor synthesis	AZOBR_RS05650
NifB-domain protein, type 2	No genes
NifM protein	No genes
NifT protein	No genes
NifX-associated protein	AZOBR_RS05535
NifY protein	No genes
NifZ protein	AZOBR_RS05640
	AZOBR_RS05645
Nitrogenase (iron-iron) alpha chain (EC 1.18.6.1)	No genes
Nitrogenase (iron-iron) beta chain (EC 1.18.6.1)	No genes
Nitrogenase (iron-iron) delta chain (EC 1.18.6.1)	No genes
Nitrogenase (iron-iron) reductase and maturation protein AnfH	No genes
Nitrogenase (iron-iron) transcriptional regulator	AZOBR_RS29300
Nitrogenase (molybdenum-iron) alpha chain (EC 1.18.6.1)	AZOBR_RS05575
Nitrogenase (molybdenum-iron) beta chain (EC 1.18.6.1)	AZOBR_RS05570
Nitrogenase (molybdenum-iron) reductase and maturation protein NifH	AZOBR_RS05580
Nitrogenase (molybdenum-iron)-specific transcriptional regulator NifA	No genes
Nitrogenase (vanadium-iron) alpha chain (EC 1.18.6.1)	AZOBR_RS29315
Nitrogenase (vanadium-iron) beta chain (EC 1.18.6.1)	AZOBR_RS29325
Nitrogenase (vanadium-iron) delta chain (EC 1.18.6.1)	AZOBR_RS29320
Nitrogenase (vanadium-iron) reductase and maturation protein VnfH	No genes
Nitrogenase (vanadium-iron) transcriptional regulator VnfA	No genes
Nitrogenase FeMo-cofactor carrier protein NifX	AZOBR_RS05540
Nitrogenase FeMo-cofactor scaffold and assembly protein NifE	AZOBR_RS05550
Nitrogenase FeMo-cofactor scaffold and assembly protein NifN	No genes
Nitrogenase FeMo-cofactor synthesis FeS core scaffold and assembly protein NifB	AZOBR_RS05665
Nitrogenase FeMo-cofactor synthesis molybdenum delivery protein NifQ	AZOBR_RS05520
	AZOBR_RS06025
Nitrogenase cofactor carrier protein NafY	No genes
Nitrogenase stabilizing/protective protein NifW	AZOBR_RS05485
Nitrogenase vanadium-cofactor synthesis protein VnfE	No genes
Nitrogenase vanadium-cofactor synthesis protein VnfN	AZOBR_RS29280
Nitrogenase vanadium-cofactor synthesis protein VnfX	AZOBR_RS29285
Nitrogenase vanadium-cofactor synthesis protein VnfY	AZOBR_RS29335
Nitrogenase-associated protein NifO	AZOBR_RS05600
	AZOBR_RS07680
Transcriptional repressor of nif and glnA operons	No genes
probable iron binding protein from the HesB_IscA_SufA family in Nif operon	No genes