ApoenzymesApoproteinsPyridoxal PhosphateMethylmalonyl-CoA MutaseFlavin-Adenine DinucleotidePyridoxalD-Amino-Acid OxidaseKineticsSpectrophotometryPyridoxamineSpectrophotometry, UltravioletCoenzymesAspartate AminotransferasesDihydrolipoamide DehydrogenaseBinding SitesZincPQQ CofactorTryptophanaseCobamidesPropanediol DehydrataseEscherichia coliProtein ConformationSpectrometry, FluorescenceTyrosine DecarboxylaseTransketolaseGlycine HydroxymethyltransferasePyruvate OxidaseCatalysisProtein BindingThiamine PyrophosphateCobaltPyruvate DecarboxylaseDithionitrobenzoic AcidEthanolamine Ammonia-LyaseEnzyme StabilityLyasesGlucose DehydrogenasesHydrogen-Ion ConcentrationTryptophan OxygenaseL-Serine DehydrataseNADOrnithine-Oxo-Acid TransaminaseGlucose 1-DehydrogenaseGlucose OxidaseHoloenzymesCrystallography, X-RaySulfhydryl CompoundsTransaminasesHydro-LyasesPyridoxineFlavinsIsomerasesMacromolecular SubstancesCrystallizationUreaseMolecular WeightFlavin MononucleotideSubstrate SpecificityMetalsBromidesCations, DivalentSwineGlyceraldehyde-3-Phosphate DehydrogenasesProtein DenaturationGuanidinesAnilino NaphthalenesulfonatesDialysisMethylmalonic AcidSpectrum AnalysisElectron Spin Resonance Spectroscopy