Protein ConformationIsomerismKineticsHeterotaxy SyndromeHeart Defects, CongenitalHeart AtriaSitus InversusHeart Septal DefectsAbnormalities, MultipleVenae CavaeDextrocardiaLevocardiaHeart Bypass, RightPulmonary VeinsErythrocruorinsPulmonary Veno-Occlusive DiseaseModels, MolecularGrowth Differentiation Factor 1Fetal HeartCyanosisAbortion, EugenicMagnetic Resonance SpectroscopyNodal ProteinAtrioventricular NodeFetal DiseasesVena Cava, InferiorFontan ProcedureAzygos VeinTachycardia, SupraventricularSinoatrial NodeHeart BlockProlineUltrasonography, PrenatalHeart ValvesAtrial AppendageHeart Septal Defects, AtrialProtein BindingProtein Structure, SecondaryStereoisomerismPrenatal DiagnosisBinding SitesProtein Structure, TertiaryCircular DichroismCrystallography, X-RayInfant, NewbornMolecular ConformationSyndromeMolecular StructureThermodynamicsMolecular Sequence DataBody PatterningAmino Acid SequenceSpectrometry, FluorescencePregnancyEchocardiographyProtein FoldingAsiaGestational AgeMolecular Dynamics SimulationNucleic Acid ConformationNuclear Magnetic Resonance, BiomolecularLigandsProtein DenaturationSpleenModels, ChemicalStructure-Activity RelationshipHydrogen-Ion ConcentrationTemperatureHydrogen BondingStomachRetrospective StudiesTime FactorsMutationEscherichia coliProtein Structure, QuaternaryMutagenesis, Site-DirectedComputer SimulationAllosteric RegulationDimerizationSolutionsRecombinant ProteinsTryptophanCatalytic DomainPolymorphism, Single-Stranded ConformationalFluorescence Resonance Energy TransferTreatment OutcomeSpectrophotometry, UltravioletAmino Acid SubstitutionCatalysisPeptidesAdenosine TriphosphateFollow-Up StudiesPeptide FragmentsBacterial ProteinsSolventsStatic ElectricityHydrolysisProtein MultimerizationEpitopesCysteine