SEED Subsystem: Nitrogen fixation in Methanococcus maripaludis S2

Role	Gene	Name	H2 N-free with 10mM L-Valine
4Fe-4S ferredoxin, nitrogenase-associated	No genes
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	MMP_RS04475		-1.4
NifM protein	No genes
NifT protein	No genes
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)	MMP_RS04455		-4.4
Nitrogenase (molybdenum-iron) beta chain (EC 1.18.6.1)	MMP_RS04460		-4.4
Nitrogenase (molybdenum-iron) reductase and maturation protein NifH	MMP_RS04440		-4.2
Nitrogenase (molybdenum-iron)-specific transcriptional regulator NifA	No genes
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	No genes
Nitrogenase FeMo-cofactor scaffold and assembly protein NifE	MMP_RS04465		-4.2
Nitrogenase FeMo-cofactor scaffold and assembly protein NifN	MMP_RS04470		-4.4
Nitrogenase FeMo-cofactor synthesis FeS core scaffold and assembly protein NifB	MMP_RS03455		N.D.
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	MMP_RS02275		N.D.
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	MMP_RS03195		N.D.
probable iron binding protein from the HesB_IscA_SufA family in Nif operon	No genes