SEED Subsystem: Nitrogen fixation in Sinorhizobium meliloti 1021

Role	Gene	Name
4Fe-4S ferredoxin, nitrogenase-associated	SMa0811
	SMa0834
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	No genes
Homocitrate synthase (EC 2.3.3.14)	No genes
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	No genes
LRV (FeS)4 cluster domain protein clustered with nitrogenase cofactor synthesis	No genes
NifB-domain protein, type 2	No genes
NifM protein	No genes
NifT protein	SMa0810
NifX-associated protein	No genes
NifY protein	No genes
NifZ protein	No genes
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	No genes
Nitrogenase (molybdenum-iron) alpha chain (EC 1.18.6.1)	SMa0827
Nitrogenase (molybdenum-iron) beta chain (EC 1.18.6.1)	SMa0829
Nitrogenase (molybdenum-iron) reductase and maturation protein NifH	SMa0825
Nitrogenase (molybdenum-iron)-specific transcriptional regulator NifA	SMa0815
Nitrogenase (vanadium-iron) alpha chain (EC 1.18.6.1)	No genes
Nitrogenase (vanadium-iron) beta chain (EC 1.18.6.1)	No genes
Nitrogenase (vanadium-iron) delta chain (EC 1.18.6.1)	No genes
Nitrogenase (vanadium-iron) reductase and maturation protein VnfH	No genes
Nitrogenase (vanadium-iron) transcriptional regulator VnfA	No genes
Nitrogenase FeMo-cofactor carrier protein NifX	SMa0831
Nitrogenase FeMo-cofactor scaffold and assembly protein NifE	SMa0830
Nitrogenase FeMo-cofactor scaffold and assembly protein NifN	SMa0873
Nitrogenase FeMo-cofactor synthesis FeS core scaffold and assembly protein NifB	SMa0814
Nitrogenase FeMo-cofactor synthesis molybdenum delivery protein NifQ	No genes
Nitrogenase cofactor carrier protein NafY	No genes
Nitrogenase stabilizing/protective protein NifW	No genes
Nitrogenase vanadium-cofactor synthesis protein VnfE	No genes
Nitrogenase vanadium-cofactor synthesis protein VnfN	No genes
Nitrogenase vanadium-cofactor synthesis protein VnfX	No genes
Nitrogenase vanadium-cofactor synthesis protein VnfY	No genes
Nitrogenase-associated protein NifO	No genes
Transcriptional repressor of nif and glnA operons	No genes
probable iron binding protein from the HesB_IscA_SufA family in Nif operon	No genes