Mice, KnockoutGene DeletionSequence DeletionChromosome DeletionGene Knockout TechniquesMolecular Sequence DataBase SequenceMice, Inbred C57BLMutationAmino Acid SequencePhenotypePolymerase Chain ReactionHomozygoteCell LineRNA, MessengerGene TargetingPromoter Regions, GeneticPlasmidsChromosome MappingExonsDisease Models, AnimalCloning, MolecularDNA PrimersTranscription, GeneticDNA Mutational AnalysisSignal TransductionGene Expression RegulationTranscription FactorsCells, CulturedClonal DeletionDNA-Binding ProteinsHeterozygoteGenotypeEscherichia coliMutagenesisBacterial ProteinsAllelesRecombination, GeneticChromosomes, Human, Pair 22Genetic Complementation TestSaccharomyces cerevisiaeMutagenesis, InsertionalMembrane ProteinsMice, 129 StrainProtein BindingTransfectionRestriction MappingBlotting, SouthernProtein Structure, TertiaryReverse Transcriptase Polymerase Chain ReactionIn Situ Hybridization, FluorescenceAbnormalities, Multiple22q11 Deletion SyndromeCarrier ProteinsDNABlotting, WesternBinding SitesGene ExpressionIntegrasesSequence Analysis, DNASequence Homology, Amino AcidGenes, BacterialRecombinant Fusion ProteinsMutagenesis, Site-DirectedFrameshift MutationSaccharomyces cerevisiae ProteinsPoint MutationGene Expression Regulation, BacterialPedigreeDiGeorge SyndromeMice, TransgenicNuclear ProteinsSequence AlignmentRecombinant ProteinsNerve Tissue ProteinsGene DosageRepetitive Sequences, Nucleic AcidCrosses, GeneticSyndromeImmunohistochemistryFungal ProteinsIntellectual DisabilityEmbryo, MammalianApoptosisGene Expression Regulation, DevelopmentalModels, GeneticLiverGenes, FungalTime FactorsDNA Transposable ElementsRepressor ProteinsGenesMice, Mutant StrainsINDEL MutationBrainTrans-ActivatorsMultigene FamilyKaryotypingNeuronsGenes, Lethal