GalliumGallium RadioisotopesHydrogen SulfideCrystallography, X-RayModels, MolecularSulfidesCrystallizationGallium IsotopesProtein ConformationProtein Structure, TertiaryBinding SitesMolecular Sequence DataAmino Acid SequenceProtein Structure, SecondaryCrystallographyProtein Structure, QuaternaryCatalytic DomainProtein BindingHydrogen BondingDimerizationSequence Homology, Amino AcidStructural Homology, ProteinCystathionine gamma-LyaseSequence AlignmentBacterial ProteinsCatalysisMolecular StructureSubstrate SpecificityMolecular ConformationStructure-Activity RelationshipProtein MultimerizationStatic ElectricityLiquid CrystalsCitratesProtein FoldingEscherichia coliLigandsX-Ray DiffractionPyronesSulfurMutagenesis, Site-DirectedThiosulfatesOrganometallic CompoundsIndiumRecombinant ProteinsRadionuclide ImagingSulfur OxidesIronHydrophobic and Hydrophilic InteractionsMutationModels, ChemicalKineticsOxyquinolineReceptors, TransferrinEscherichia coli ProteinsAmino Acid Motifs