Helix-Loop-Helix MotifsInhibitor of Differentiation ProteinsBasic Helix-Loop-Helix Transcription FactorsAmino AcidsSequence Homology, Amino AcidAmino Acid SequenceAmino Acid SubstitutionHelix (Snails)Molecular Sequence DataModels, MolecularProtein Structure, SecondaryCloning, MolecularBinding SitesBase SequenceProtein Structure, TertiarySequence AlignmentMutationMutagenesis, Site-DirectedProtein ConformationEscherichia coliAmino Acids, EssentialAmino Acid MotifsProtein BindingAmino Acid Transport SystemsStructure-Activity RelationshipKineticsRecombinant ProteinsPeptide FragmentsDNAPeptidesDNA, ComplementarySequence Homology, Nucleic AcidBacterial ProteinsSubstrate SpecificityAmino Acids, AromaticNucleic Acid ConformationLeucineCell LineCrystallography, X-RayRecombinant Fusion ProteinsAlanineAmino Acids, Branched-ChainVaccinium macrocarponConserved SequenceMolecular WeightProteinsPlasmidsElectrophoresis, Polyacrylamide GelRestriction MappingPhylogenyRNA, MessengerMagnetic Resonance SpectroscopyLysineDNA PrimersCysteineSequence Analysis, DNAProtein FoldingMutagenesisMembrane ProteinsCarrier ProteinsGenes, BacterialCattleGlycinePoint MutationIsoleucineSpecies SpecificityBiological TransportSequence DeletionArginineChromatography, High Pressure LiquidAmino Acid Transport Systems, BasicProlineSaccharomyces cerevisiaeTranscription, GeneticTrypsinAspartic AcidCell MembraneThermodynamicsTransfectionDimerizationDNA-Binding ProteinsCodonAmino Acids, BasicTryptophanEscherichia coli ProteinsProtein BiosynthesisCyanogen BromideMacromolecular SubstancesGlutaminePolymerase Chain ReactionPhenylalanineTemperatureHydrophobic and Hydrophilic InteractionsValineAmino Acids, DiaminoCOS CellsGenesGene LibraryOpen Reading FramesNuclear Magnetic Resonance, Biomolecular