GoatsCarbohydrate MetabolismSubstrate SpecificityKineticsMolecular Sequence DataAmino Acid SequenceBinding SitesCatalysisModels, MolecularHydrolysisProtein BindingEscherichia coliCatalytic DomainHydrogen-Ion ConcentrationRecombinant ProteinsCrystallography, X-RayProtein ConformationProtein Structure, TertiaryBase SequencePhosphorylationSequence Homology, Amino AcidMutagenesis, Site-DirectedStructure-Activity RelationshipMutationOxidation-ReductionBacterial ProteinsCloning, MolecularAdenosine TriphosphateMolecular StructureModels, ChemicalEnzyme Activation