AllelesMice, KnockoutPhenotypeGene Knockout TechniquesGenotypeGene FrequencyPolymorphism, GeneticMice, Inbred C57BLMutationPolymorphism, Single NucleotideGenetic Predisposition to DiseaseHeterozygoteMolecular Sequence DataHomozygoteBase SequenceHaplotypesGenetic VariationGene DeletionPolymerase Chain ReactionCrosses, GeneticGene TargetingChromosome MappingMice, TransgenicModels, GeneticAmino Acid SequenceGenetic MarkersLinkage DisequilibriumDisease Models, AnimalMicrosatellite RepeatsDNA PrimersCase-Control StudiesHLA-DRB1 ChainsSequence Analysis, DNAPolymorphism, Restriction Fragment LengthRNA, MessengerGenes, LethalSignal TransductionGene Expression RegulationGenetics, PopulationApolipoproteins EExonsPedigreeCells, CulturedGenetic LinkageGenetic Association StudiesGenetic Complementation TestDNA Mutational AnalysisTranscription FactorsPromoter Regions, GeneticRecombination, GeneticMice, 129 StrainAsian Continental Ancestry Group