Mice, KnockoutCrosses, GeneticLa Crosse virusMice, Inbred C57BLEncephalitis, CaliforniaGene Knockout TechniquesEncephalitis Virus, CaliforniaHybridization, GeneticPhenotypeBunyaviridaeDisease Models, AnimalHybrid VigorMice, TransgenicChromosome MappingMutationGene DeletionGene TargetingBreedingGenotypeMice, 129 StrainHeterozygoteSignal TransductionRecombination, GeneticCells, CulturedMice, Inbred StrainsHomozygoteRNA, MessengerGene Expression RegulationQuantitative Trait LociBehavior, AnimalGenetic LinkageBrainLiverInbreedingAllelesReproductionApolipoproteins EReverse Transcriptase Polymerase Chain ReactionFertilityNeuronsSpecies SpecificityTime FactorsImmunohistochemistryMolecular Sequence DataModels, GeneticBase SequenceBlotting, WesternNerve Tissue ProteinsBody WeightEmbryo, MammalianAnimals, NewbornGenetic MarkersMotor ActivityMembrane ProteinsEncephalitis VirusesHippocampusApoptosisDNA PrimersCell LineGene ExpressionEncephalitis, ArbovirusGene Expression Regulation, DevelopmentalAnalysis of VarianceMice, Inbred BALB CIntegrasesInheritance PatternsHomeostasisMaze LearningTranscription FactorsKidneyModels, AnimalCarrier ProteinsDose-Response Relationship, DrugCell DifferentiationGenes, LethalOrgan SpecificityChimeraUp-RegulationModels, BiologicalSeedsGenetic VariationMice, Mutant StrainsQuantitative Trait, HeritableMuscle, SkeletalDNA-Binding ProteinsReceptor, Serotonin, 5-HT1BReceptor, Adenosine A2AExploratory BehaviorReproductive IsolationNitric Oxide Synthase Type IIChromosomes, MammalianAtherosclerosisInflammationGenetic Complementation TestSpleenCell ProliferationGene Expression ProfilingEmbryo LossReceptor, Muscarinic M4Least-Squares Analysis