IsomerismHeterotaxy SyndromeHeart Defects, CongenitalHeart AtriaSitus InversusHeart Septal DefectsAbnormalities, MultipleVenae CavaeDextrocardiaLevocardiaHeart Bypass, RightPulmonary VeinsErythrocruorinsPulmonary Veno-Occlusive DiseaseProtein ConformationGrowth Differentiation Factor 1Fetal HeartCyanosisAbortion, EugenicModels, MolecularNodal ProteinAtrioventricular NodeFetal DiseasesVena Cava, InferiorMagnetic Resonance SpectroscopyFontan ProcedureAzygos VeinTachycardia, SupraventricularSinoatrial NodeHeart BlockUltrasonography, PrenatalHeart ValvesProlineAtrial AppendageHeart Septal Defects, AtrialPrenatal DiagnosisStereoisomerismInfant, NewbornSyndromeBody PatterningPregnancyMolecular StructureEchocardiographyProtein BindingAsiaProtein Structure, SecondaryGestational AgeBinding SitesProtein Structure, TertiaryCircular DichroismCrystallography, X-RayMolecular ConformationThermodynamicsMolecular Sequence DataAmino Acid SequenceSpleenSpectrometry, FluorescenceKineticsStomachRetrospective StudiesProtein FoldingMolecular Dynamics SimulationTime FactorsNucleic Acid ConformationNuclear Magnetic Resonance, BiomolecularLigandsTreatment OutcomeProtein DenaturationModels, ChemicalFollow-Up StudiesStructure-Activity RelationshipHydrogen-Ion ConcentrationTemperatureHydrogen BondingMutationEscherichia coliProtein Structure, QuaternaryMutagenesis, Site-DirectedComputer SimulationAllosteric RegulationDimerizationSolutionsRecombinant ProteinsTryptophanCatalytic DomainPolymorphism, Single-Stranded ConformationalFluorescence Resonance Energy TransferSpectrophotometry, UltravioletAmino Acid SubstitutionCatalysisPeptidesAdenosine TriphosphatePeptide FragmentsBacterial ProteinsSolventsStatic ElectricityHydrolysisProtein MultimerizationEpitopesCysteine