5-Methyltetrahydrofolate-Homocysteine S-MethyltransferaseMethionineFormate-Tetrahydrofolate LigaseFerredoxin-NADP ReductaseCitrate (si)-SynthaseVitamin B 12Molecular Sequence DataHomocysteineHomocystinuriaAmino Acid SequenceBase SequenceFolic AcidMethylenetetrahydrofolate Reductase (NADPH2)S-AdenosylmethionineMethylmalonyl-CoA MutaseVitamin B 12 DeficiencyMethyltransferasesCystathionine beta-SynthaseTetrahydrofolatesBetaine-Homocysteine S-MethyltransferaseNitrous OxideCobamidesMethionine Sulfoxide ReductasesS-AdenosylhomocysteineThymidylate SynthaseMethylmalonic AcidHyperhomocysteinemiaHydroxocobalaminHomocystineMethionine AdenosyltransferaseGlycine HydroxymethyltransferaseRubiaceaePolymorphism, GeneticAnemia, MegaloblasticGlycine N-MethyltransferaseBetaineEscherichia coliTranscobalaminsCorrinoidsGenotypeCytochromes b5Cloning, MolecularNADPLiverNADPH-Ferrihemoprotein ReductaseFlavoproteinsOxidation-ReductionMethanosarcina barkeriOxidoreductases Acting on CH-NH Group DonorsFolic Acid DeficiencyGlycogen SynthaseMethylationGlycogen Synthase Kinase 3KineticsNitric Oxide Synthase Type IMethionyl AminopeptidasesSequence Analysis, DNAMutationTerminology as TopicNeural Tube DefectsRNA, Ribosomal, 16SDNA, ComplementaryEnzyme ActivationRNA, MessengerPhylogenyNitric OxideCatalysisBacterial ProteinsNADH DehydrogenaseRecombinant ProteinsCase-Control StudiesSpectrum AnalysisAmino AcidsCystathionineElectrophoresis, Polyacrylamide GelGenetic Predisposition to DiseaseBase CompositionAmino Acids, SulfurSequence AlignmentSwineModels, BiologicalDNA, BacterialBinding SitesModels, MolecularHomozygoteGenes, rRNAGene Expression Regulation, EnzymologicGene FrequencyProtein ConformationMalate SynthaseProtein Structure, TertiaryRats, WistarGlutamate SynthaseMethionine SulfoximinePolymorphism, Single NucleotideEnzyme InhibitorsDose-Response Relationship, DrugTryptophan SynthaseCysteineFatty Acids