IsomerismHeterotaxy SyndromeHeart Defects, CongenitalHeart AtriaHeart Septal DefectsSitus InversusAbnormalities, MultipleVenae CavaeDextrocardiaProtein ConformationLevocardiaHeart Bypass, RightPulmonary VeinsErythrocruorinsPulmonary Veno-Occlusive DiseaseModels, MolecularGrowth Differentiation Factor 1Fetal HeartCyanosisAbortion, EugenicMagnetic Resonance SpectroscopyNodal ProteinAtrioventricular NodeFetal DiseasesVena Cava, InferiorFontan ProcedureAzygos VeinSinoatrial NodeTachycardia, SupraventricularInterleukin-1betaProlineHeart BlockBinding SitesUltrasonography, PrenatalHeart ValvesProtein Structure, SecondaryAtrial AppendageStereoisomerismMolecular Sequence DataHeart Septal Defects, AtrialCrystallography, X-RayProtein BindingCircular DichroismPrenatal DiagnosisKineticsMolecular ConformationProtein Structure, Tertiarybeta 2-MicroglobulinInfant, NewbornMolecular StructureAmino Acid SequenceSyndromeThermodynamicsPregnancyBody PatterningSpectrometry, FluorescenceEchocardiographyProtein FoldingLigandsIntegrin beta3Receptors, Adrenergic, betaGestational AgeMolecular Dynamics SimulationAsiaNuclear Magnetic Resonance, BiomolecularStructure-Activity RelationshipNucleic Acid ConformationRecombinant ProteinsMutationSpleenTime FactorsModels, ChemicalHydrogen-Ion ConcentrationProtein DenaturationBase SequenceMutagenesis, Site-DirectedEscherichia coliTemperatureHydrogen BondingProtein Structure, QuaternaryDimerizationStomachTransforming Growth Factor betaRetrospective StudiesPeptide FragmentsCell LineAllosteric RegulationMacromolecular SubstancesCatalytic DomainSolutionsComputer SimulationAmino Acid SubstitutionReceptors, Adrenergic, beta-2TryptophanIntegrin alpha5beta1CatalysisAdenosine TriphosphateFluorescence Resonance Energy Transferbeta 2-Glycoprotein IDNA