ras GTPase-Activating ProteinsPost-Synaptic Densityras Proteinsp120 GTPase Activating ProteinGTPase-Activating ProteinsSynapsesSynaptic MembranesGTP PhosphohydrolasesGuanylate KinaseProto-Oncogene Proteins p21(ras)Excitatory Postsynaptic PotentialsNeurofibromin 1Nerve Tissue ProteinsCell MembraneDendritic SpinesGenes, rasHippocampusSynaptic TransmissionNeuronsReceptors, N-Methyl-D-AspartateMembranesMolecular Sequence DataReceptors, AMPAAmino Acid SequenceIntracellular Signaling Peptides and ProteinsProteinsMembrane PotentialsDendritesMembrane LipidsSignal TransductionMembrane ProteinsPresynaptic TerminalsIntracellular MembranesNeuronal PlasticityPDZ DomainsCarrier ProteinsRats, Sprague-DawleyProtein TransportMembranes, ArtificialCalcium-Calmodulin-Dependent Protein Kinase Type 2Cells, CulturedLong-Term PotentiationReceptors, GlutamateProtein BindingMicroscopy, ElectronPatch-Clamp TechniquesSynaptosomesProtein Structure, TertiaryMicroscopy, ImmunoelectronErythrocyte MembraneMembrane FluidityGlutamic AcidSubcellular FractionsOncogene Protein p21(ras)Dynamin IIIRecombinant Fusion ProteinsMutationBrainElectric StimulationCalciumGreen Fluorescent ProteinsPyramidal CellsLong-Term Synaptic DepressionCell LineInhibitory Postsynaptic PotentialsCell Membrane PermeabilityNeural InhibitionNeuropeptidesExcitatory Amino Acid AntagonistsImmunohistochemistryGuanosine TriphosphateBone DensityModels, BiologicalBasement MembraneCerebral CortexCOS CellsNucleoside-Phosphate KinaseElectrophysiologyAdaptor Proteins, Signal Transducinggamma-Aminobutyric AcidN-MethylaspartateActinsNeuromuscular JunctionAnimals, NewbornTime FactorsCerebellumGuanine Nucleotide Exchange FactorsTransfectionRats, WistarMicroscopy, ConfocalProsencephalonOrgan Culture TechniquesExcitatory Amino Acid AgentsBinding SitesGTP-Binding ProteinsCell FractionationCytoskeletonSynaptophysinBrain ChemistrySynaptic Vesicles