IsomerismHeterotaxy SyndromeProtein ConformationHeart Defects, CongenitalHeart AtriaSitus InversusHeart Septal DefectsAbnormalities, MultipleModels, MolecularVenae CavaeDextrocardiaLevocardiaHeart Bypass, RightPulmonary VeinsErythrocruorinsPulmonary Veno-Occlusive DiseaseMagnetic Resonance SpectroscopyGrowth Differentiation Factor 1Fetal HeartCyanosisProtein BindingAbortion, EugenicProtein Structure, SecondaryBinding SitesProtein Structure, TertiaryCircular DichroismCrystallography, X-RayMolecular ConformationThermodynamicsMolecular Sequence DataAmino Acid SequenceNodal ProteinAtrioventricular NodeSpectrometry, FluorescenceKineticsFetal DiseasesVena Cava, InferiorProtein FoldingProlineMolecular Dynamics SimulationFontan ProcedureAzygos VeinNucleic Acid ConformationTachycardia, SupraventricularSinoatrial NodeMolecular StructureNuclear Magnetic Resonance, BiomolecularLigandsHeart BlockStereoisomerismProtein DenaturationUltrasonography, PrenatalModels, ChemicalHeart ValvesStructure-Activity RelationshipHydrogen-Ion ConcentrationAtrial AppendageHeart Septal Defects, AtrialTemperatureHydrogen BondingPrenatal DiagnosisMutationEscherichia coliInfant, NewbornProtein Structure, QuaternaryMutagenesis, Site-DirectedSyndromeComputer SimulationAllosteric RegulationDimerizationSolutionsRecombinant ProteinsBody PatterningTryptophanCatalytic DomainPregnancyPolymorphism, Single-Stranded ConformationalFluorescence Resonance Energy TransferEchocardiographySpectrophotometry, UltravioletAmino Acid SubstitutionCatalysisPeptidesAdenosine TriphosphatePeptide FragmentsBacterial ProteinsSolventsStatic ElectricityHydrolysisProtein MultimerizationEpitopesAsiaCysteineGestational AgeTime FactorsProteinsAllosteric SiteFluorescenceSpectroscopy, Fourier Transform InfraredBase Sequence