Cell Membraneras GTPase-Activating Proteinsras Proteinsp120 GTPase Activating ProteinGTPase-Activating ProteinsGTP PhosphohydrolasesProto-Oncogene Proteins p21(ras)Neurofibromin 1Genes, rasMembranesMembrane LipidsProteinsIntracellular MembranesMembrane PotentialsMolecular Sequence DataMembranes, ArtificialSignal TransductionAmino Acid SequenceErythrocyte MembraneMembrane FluidityOncogene Protein p21(ras)Cell Membrane PermeabilityGuanosine TriphosphateBasement MembraneGTP-Binding ProteinsProtein TransportProtein Bindingrho GTP-Binding Proteinsrab GTP-Binding ProteinsMutationCell LineMonomeric GTP-Binding ProteinsMembrane Transport ProteinsProtein Structure, TertiaryMembrane GlycoproteinsLipid BilayersGuanine Nucleotide Exchange FactorsModels, BiologicalMicroscopy, ElectronMitochondrial MembranesGuanosine Diphosphaterac1 GTP-Binding ProteinRecombinant Fusion ProteinsCarrier ProteinsCells, Culturedrac GTP-Binding ProteinsEnzyme ActivationSynaptic MembranesGolgi ApparatusDynaminsEscherichia coliLiposomesMicroscopy, FluorescenceCalciumrhoA GTP-Binding ProteinEndocytosisBinding SitesCell FractionationEndoplasmic ReticulumBase SequenceTransfectionSequence Homology, Amino AcidBacterial ProteinsModels, MolecularElectrophoresis, Polyacrylamide GelRecombinant ProteinsActinsCytoskeletonEndosomesHydrogen-Ion ConcentrationKineticsDetergentsrap GTP-Binding Proteinsras Guanine Nucleotide Exchange FactorsCOS CellsExtraembryonic MembranesSaccharomyces cerevisiae ProteinsProto-Oncogene Proteins c-rafPhosphatidylcholinesADP-Ribosylation FactorsProtein ConformationSubcellular Fractionsral GTP-Binding ProteinsTemperatureTime FactorsCytoplasmCloning, MolecularHydrolysisMicroscopy, ConfocalMolecular WeightBlotting, WesternCattleMitochondriaran GTP-Binding ProteinCell Membrane Structuresrap1 GTP-Binding ProteinsHeLa CellsCell PolarityFreeze FracturingFluorescent Antibody Technique