ras GTPase-Activating Proteinsras Proteinsp120 GTPase Activating ProteinGTPase-Activating ProteinsCell DifferentiationProto-Oncogene Proteins p21(ras)GTP PhosphohydrolasesNeurofibromin 1Point MutationMutation, MissenseMutationGenes, rasMolecular Sequence DataSignal TransductionProteinsAmino Acid SequenceFrameshift MutationBase SequenceCells, CulturedCell LineOncogene Protein p21(ras)Germ-Line MutationTranscription FactorsRNA, MessengerPhenotypeGene Expression Regulation, DevelopmentalDNA-Binding ProteinsPedigreeGene Expression RegulationStem CellsPolymerase Chain ReactionCell DivisionProtein BindingGuanosine TriphosphateTransfectionProtein Structure, TertiaryCell ProliferationDNA PrimersExonsAmino Acid SubstitutionMutation Raterho GTP-Binding ProteinsMembrane ProteinsHeterozygoteAllelesSex DifferentiationTranscription, GeneticCell LineageReverse Transcriptase Polymerase Chain ReactionMutagenesis, Site-DirectedEmbryonic Stem CellsMonomeric GTP-Binding ProteinsGene ExpressionNuclear ProteinsSequence Homology, Amino AcidMice, Inbred C57BLDNA Mutational AnalysisProto-Oncogene ProteinsPromoter Regions, GeneticBinding SitesGTP-Binding ProteinsMice, TransgenicMutagenesisMice, KnockoutImmunohistochemistryModels, BiologicalSequence Analysis, DNAHomeodomain Proteinsrab GTP-Binding ProteinsCarrier ProteinsCloning, MolecularGenotypePhosphorylationRecombinant Fusion ProteinsTretinoinBlotting, WesternEnzyme ActivationRecombinant ProteinsGenes, DominantGuanine Nucleotide Exchange FactorsHomozygoteTumor Cells, CulturedTrans-ActivatorsRepressor ProteinsPolymorphism, Single-Stranded ConformationalDNAKineticsGene DeletionTime Factorsrac1 GTP-Binding ProteinNeuronsSequence DeletionCell Transformation, NeoplasticModels, MolecularSequence AlignmentEscherichia coliGuanosine DiphosphateNerve Tissue ProteinsProtein-Serine-Threonine KinasesOsteoblasts