Structure-Activity RelationshipBuffersMolecular Sequence DataAmino Acid SequenceProgesterone ReductaseTrichosanthinModels, MolecularProtein ConformationSequence Homology, Amino AcidMutagenesis, Site-DirectedProtein Structure, SecondaryBase SequenceRecombinant ProteinsBinding SitesSequence AlignmentKineticsMutationProtein Structure, TertiaryCloning, MolecularEscherichia coliCrystallography, X-RayCysteineCatalysisConserved SequenceProtein BindingMolecular StructureSubstrate SpecificitySaccharomyces cerevisiaePeptidesRecombinant Fusion ProteinsBacterial ProteinsDNAPhylogenyTromethamineHydrogen-Ion ConcentrationHEPESCalciumOsmolar ConcentrationElectrophoresis, CapillaryTemperatureBicarbonatesChromatography, High Pressure LiquidSolubilityDrug StabilityPhosphatesMolecular WeightEgtazic AcidEdetic AcidCattleIndicators and ReagentsSpectrophotometry, UltravioletElectrophoresis, Polyacrylamide GelChelating AgentsMagnesiumChromatography, GelSodium BicarbonateRabbitsDialysisOxidation-ReductionSolutionsTime FactorsAlkanesulfonatesAcid-Base EquilibriumElectrochemistryPerfusionSpectrophotometryBoratesCalbindin 1Fluorescent DyesSpectrometry, FluorescenceHot TemperatureMicroscopy, ElectronAdenosine TriphosphateCulture MediaElectrodesAdsorptionAcidsDiffusionPotassium CompoundsWaterMethodsSerum Albumin, BovineAcetonitrilesCell MembraneDetergentsChemistryCircular DichroismChromatography, AffinityChemistry, PharmaceuticalChemical PhenomenaAmino AcidsCalibration