AminesNitrogen IsotopesMolecular StructureNitrogen FixationAmine Oxidase (Copper-Containing)Hydrogen BondingBiogenic AminesStructure-Activity RelationshipModels, MolecularNitrogenCoordination ComplexesAminationCrystallography, X-RayMolecular ConformationMagnetic Resonance SpectroscopyStereoisomerismNitrogen CompoundsBinding SitesChemical PhenomenaModels, ChemicalChemistryNitrogen CycleBlood Urea NitrogenQuaternary Ammonium CompoundsNitrogen DioxideEstersCopperCatalysisElectron Spin Resonance SpectroscopyHistidineOxidation-ReductionProtein ConformationHydrogen-Ion ConcentrationKineticsQuantum TheoryReactive Nitrogen SpeciesAmidesPhysicochemical PhenomenaIndicators and ReagentsSpectrophotometryOrganometallic CompoundsSpectrum AnalysisChemistry, PhysicalProtonsMolecular Sequence DataMass SpectrometryNitrogen OxidesProtein BindingAmino Acid SequenceSpectrometry, Mass, Electrospray IonizationPII Nitrogen Regulatory ProteinsOxygenCarbonImidazolesLigandsAmmoniaThermodynamicsNitratesFertilizersSpectrometry, Mass, Fast Atom BombardmentAmino AcidsGlutamate-Ammonia LigaseUreaNitrogen Mustard CompoundsNitrogenaseOctopamineSoilReceptors, Biogenic AmineTyramineOxidoreductases Acting on CH-NH Group DonorsSemicarbazidesSulfurHeterocyclic CompoundsSymbiosisBacterial ProteinsGlutamineMethylaminesBiomassWaterHydrogenAcetylenePlant RootsEthylaminesPlant LeavesCulture MediaSubstrate SpecificityMonoamine OxidaseNitritesDigestionOxidoreductasesCattlePhosphorusGene Expression Regulation, BacterialTemperatureChromatography, High Pressure LiquidOxygen IsotopesBacteriaAmmonium CompoundsDihydroxyphenylalanineGlutamate Synthase