Organizational Case StudiesModels, MolecularMolecular Sequence DataCrystallography, X-RayAmino Acid SequenceProtein ConformationCarbohydrate SequenceProtein Structure, TertiaryMagnetic Resonance SpectroscopyCarbohydrate ConformationBinding SitesProtein Structure, SecondaryOligosaccharidesBase SequenceProtein BindingSequence Homology, Amino AcidMolecular StructureCrystallizationSequence AlignmentMass SpectrometryCatalytic DomainStructure-Activity RelationshipNucleic Acid ConformationCloning, MolecularProtein Structure, QuaternaryNuclear Magnetic Resonance, BiomolecularPolysaccharidesMutationEscherichia coliBacterial ProteinsChromatography, High Pressure LiquidStructural Homology, ProteinHydrogen BondingSpectrometry, Mass, Fast Atom BombardmentProtein FoldingMonosaccharidesCryoelectron Microscopy