PhenotypeGenotypeBuffersMutationMolecular Sequence DataBase SequenceTromethamineHydrogen-Ion ConcentrationAmino Acid SequenceAllelesCells, CulturedCell DifferentiationMice, Inbred C57BLMice, KnockoutKineticsSignal TransductionGenetic Complementation TestMice, TransgenicPedigreeHEPESGene DeletionCell LineChromosome MappingRNA, MessengerTemperatureTranscription Factors