Lactose IntoleranceLactose Tolerance TestLactose SynthaseLactose FactorsLactaseThiogalactosidesSymportersMilkNitrophenylgalactosidesGalactosidesGalactosidasesMonosaccharide Transport ProteinsMembrane Transport ProteinsEscherichia coliMethylgalactosidesHydrogenMolecular Sequence DataBreath TestsYogurtAmino Acid SequenceMelibioseEscherichia coli ProteinsTrypsinDisaccharidesLac OperonPowdersKineticsCarbohydrate MetabolismDairy ProductsChromatography, High Pressure LiquidBase SequenceFlatulencePeptide FragmentsGalactosephosphatesGlycosidesLactalbuminMolecular WeightHydrogen-Ion ConcentrationCattleCarbohydratesThioglycosidesPhosphoenolpyruvate Sugar Phosphotransferase SystemMaltoseAmino AcidsElectrophoresis, Polyacrylamide GelDNA, BacterialLactationLac RepressorsHydrolysisIsopropyl ThiogalactosideCulture MediaLactococcus lactisGlucoseIntestinal AbsorptionExcipientsDNA Restriction EnzymesLactase-Phlorizin HydrolaseMass SpectrometryStreptococcusMutationDigestionPlasmidsCaseinsBacterial ProteinsBinding SitesSucroseCloning, MolecularSubstrate SpecificityGenes, BacterialPeptidesChromatography, GelMalabsorption SyndromesMembrane Transport ModulatorsBiological TransportLectinsLactobacillusSpecies SpecificityDNAChromatography, Ion ExchangeTime FactorsTemperatureIntestine, SmallHypocreaNucleic Acid HybridizationCarbohydrate SequencePepsin ALactuloseChemistry, PharmaceuticalSwineGlycoside HydrolasesFecesBiological Transport, ActiveDietary CarbohydratesGalectinsPeptide MappingSpectrometry, Mass, Matrix-Assisted Laser Desorption-IonizationMammary Glands, AnimalEnzyme InductionChymotrypsinKluyveromyces