Helix-Loop-Helix MotifsInhibitor of Differentiation ProteinsBasic Helix-Loop-Helix Transcription FactorsProtein Structure, SecondaryMolecular Sequence DataAmino Acid SequenceHelix (Snails)Amino Acid MotifsModels, MolecularProtein Structure, TertiaryBinding SitesNucleic Acid ConformationProtein ConformationBase SequenceProtein BindingCrystallography, X-RayMutagenesis, Site-DirectedSequence Homology, Amino AcidMutationNucleotide MotifsSequence AlignmentStructure-Activity RelationshipNuclear Magnetic Resonance, BiomolecularProtein FoldingMagnetic Resonance SpectroscopyEscherichia coliConserved SequenceDNAHydrogen BondingPeptidesThermodynamicsAmino Acid SubstitutionDimerizationHydrophobic and Hydrophilic InteractionsHelix-Turn-Helix Motifs