Molecular ConformationProtein ConformationErabutoxinsModels, MolecularX-Ray DiffractionMagnetic Resonance SpectroscopyStructure-Activity RelationshipAmino Acid SequenceProtein BindingMolecular Sequence DataBinding SitesProtein Structure, TertiarySignal TransductionMutationCell LineRNA, MessengerReverse Transcriptase Polymerase Chain ReactionGene Expression RegulationCells, CulturedCell Line, TumorBlotting, WesternModels, BiologicalPhosphorylationApoptosisImmunohistochemistryGene Expression ProfilingCrystallography, X-RayProtein Structure, SecondaryCircular DichroismThermodynamicsProtein FoldingHydrogen BondingSolutionsKineticsNuclear Magnetic Resonance, BiomolecularPolymorphism, Single-Stranded ConformationalModels, ChemicalMolecular Dynamics SimulationLigandsSpectrometry, Fluorescence