NitrogenaseHydrogenaseNitrogen FixationMolybdoferredoxinAcetyleneAzotobacterHydrogenAzotobacter vinelandiiMolybdenumOxidoreductasesDesulfovibrioNickelFerredoxinsDinitrogenase ReductaseRhodospirillum rubrumKlebsiella pneumoniaeIron-Sulfur ProteinsDithioniteRhodobacter capsulatusOxidation-ReductionElectron Spin Resonance SpectroscopyThiocapsa roseopersicinaNitrogenAlcaligenesClostridiumEthaneBacterial ProteinsGenes, BacterialRhizobiaceaeMetalloproteinsCyanobacteriaAnaerobiosisIronCarbon MonoxideAmmoniaFormate DehydrogenasesElectron TransportTricarboxylic AcidsCupriavidus necatorRhizobiumBenzyl ViologenViologensRhodopseudomonasAzospirillum brasilenseOxygenMethionine SulfoximineRhizobium leguminosarumFlavodoxinVanadiumGene Expression Regulation, BacterialMethanosarcina barkeriNostocArgonNonheme Iron ProteinsKineticsQuaternary Ammonium CompoundsMolecular Sequence DataAnabaenaSulfurDesulfovibrio vulgaris