Genes, MHC Class IIGenes, RegulatorTranscription FactorsMolecular Sequence DataMutationHomeodomain ProteinsGenesPhenotypeMice, Inbred StrainsCrosses, GeneticBase SequenceDrosophila ProteinsGene Expression Regulation, DevelopmentalChromosome MappingGenes, HomeoboxGene Expression RegulationGenes, InsectTrinitrobenzenesTranscription, GeneticFlowersDrosophilaH-2 AntigensPlant ProteinsBody PatterningGenes, PlantMajor Histocompatibility ComplexMice, Inbred AAmino Acid SequenceGene Expression Regulation, PlantRepressor ProteinsGene Expression Regulation, BacterialDNA-Binding ProteinsPromoter Regions, GeneticRNA, MessengerGenetic LinkageHistocompatibility AntigensGenes, HelminthDrosophila melanogasterNucleic Acid ConformationAllelesT-LymphocytesLac OperonArabidopsis ProteinsMorphogenesisGenetic Complementation TestCloning, MolecularAntibody FormationGenes, BacterialTrans-ActivatorsGenotypeCaenorhabditis elegans ProteinsIn Situ HybridizationCell DifferentiationArabidopsisCaenorhabditis elegansBacterial ProteinsRNA, BacterialGenes, ReporterCarrier ProteinsGene ExpressionEnhancer Elements, GeneticSpecies SpecificityPhylogenyChromatinPlants, Genetically ModifiedMice, Inbred C57BLGenes, FungalLarvaSequence Homology, Amino AcidNuclear ProteinsCell NucleusEmbryo, NonmammalianBasic Helix-Loop-Helix Transcription FactorsModels, GeneticEscherichia coliEpitopesModels, BiologicalSequence AlignmentRegulatory Sequences, Nucleic AcidSequence Analysis, DNASignal TransductionHistocompatibility Antigens Class IIMembrane ProteinsCell DivisionConserved SequencePlasmidsBinding SitesPeptidesCells, CulturedCell LineSaccharomyces cerevisiaeDNAProtein BiosynthesisB-LymphocytesRecombination, GeneticMacrophagesTemperatureEvolution, MolecularDNA PrimersMice, Transgenic