Mice, KnockoutPhenotypeGene Knockout TechniquesIntegrasesDrug ResistanceMice, Inbred C57BLDrug Resistance, MicrobialGene DeletionDrug Resistance, BacterialMice, TransgenicDrug Resistance, NeoplasmGene TargetingSignal TransductionMutationDrug Resistance, MultipleDisease ResistanceDisease Models, AnimalVascular ResistanceGene Expression Regulation, DevelopmentalEmbryo LossEmbryo, MammalianDrug Resistance, Multiple, BacterialProsencephalonDrug Resistance, ViralCell DifferentiationCells, CulturedMice, 129 StrainCell ProliferationAnti-Bacterial AgentsReverse Transcriptase Polymerase Chain ReactionMicrobial Sensitivity TestsMolecular Sequence DataGenotypeApoptosisGene Expression RegulationBlotting, WesternTranscription FactorsOrgan SpecificityHomeostasisImmunohistochemistryRNA, MessengerNeuronsTime FactorsAllelesBase SequenceCell SurvivalAnimals, NewbornNerve Tissue ProteinsMembrane ProteinsTetracycline ResistanceHomeodomain ProteinsDNA PrimersRibonuclease IIINeurogenesisCell LinePlant DiseasesHomozygoteLiverGene ExpressionEmbryonic DevelopmentPenicillin ResistanceFertilityRecombination, GeneticBrainCyclin-Dependent Kinase 5Polymerase Chain ReactionDrug Resistance, FungalDEAD-box RNA HelicasesBacterial ProteinsReal-Time Polymerase Chain ReactionDNA-Binding ProteinsAirway ResistanceReceptors, Transforming Growth Factor betaBehavior, AnimalGenetic EngineeringRepressor ProteinsLIM-Homeodomain ProteinsHeterozygotePTEN PhosphohydrolaseCarrier ProteinsSertoli CellsMammary Glands, AnimalProtein-Serine-Threonine KinasesGenes, LethalModels, BiologicalBone Morphogenetic Protein Receptors, Type IBasic Helix-Loop-Helix Transcription FactorsMicroscopy, Electron, TransmissionPromoter Regions, GeneticMice, Inbred StrainsDown-RegulationGene Expression ProfilingStem CellsUp-RegulationReceptors, NotchImmunity, InnateHepatocytesHippocampusbeta Cateninbeta-Lactam Resistance