Ammonium SulfateCrystallizationQuaternary Ammonium CompoundsCrystallography, X-RayX-Ray DiffractionChromatography, High Pressure LiquidEscherichia coliAmmonium ChlorideAmmonium CompoundsAmmonium HydroxideAmmoniaNitrogenMethylaminesHydrogen-Ion ConcentrationNitratesGlutamate-Ammonia LigaseCation Transport ProteinsTrimethyl Ammonium CompoundsChemical PrecipitationMolecular WeightKineticsNitrosomonasGlutamate SynthaseCulture MediaFractional PrecipitationChromatography, GelGlutamineAmino AcidsChromatography, Ion ExchangeBenzalkonium CompoundsNitritesGlutamate DehydrogenaseUreaMolecular Sequence DataNitrate ReductasePII Nitrogen Regulatory ProteinsElectrophoresis, Polyacrylamide GelChromatographyTemperatureNitrogen FixationNitrate ReductasesNitrogen IsotopesSubstrate SpecificityAcetatesDisinfectantsCetrimonium CompoundsOxidation-ReductionMagnesium CompoundsBacterial ProteinsNitrificationAmino Acid SequenceBioreactorsNitrogenaseBacteria, AnaerobicPlant RootsAcidosisBiological TransportGlutamate Synthase (NADH)Chromatography, DEAE-CelluloseIsoelectric PointMethionine SulfoximineKetoglutaric AcidsNitrogen CompoundsFertilizersBacteriaGlutamate Dehydrogenase (NADP+)Acid-Base EquilibriumCarbonPlant ProteinsAzospirillum brasilensePhosphatesNitrite ReductasesChemical FractionationAcidosis, Renal TubularZeolitesAnaerobiosis