Genes, erbBReceptor, erbB-3Neuregulin-1Receptor, erbB-2Oncogene Proteins v-erbBReceptor, Epidermal Growth FactorGenes, erbB-2Signal TransductionBreast NeoplasmsCell Line, TumorQuinazolinesEpidermal Growth FactorPhosphorylationMucin-4Proto-Oncogene Proteins c-aktGene Expression Regulation, NeoplasticDimerizationLigandsPhosphatidylinositol 3-KinasesProto-Oncogene ProteinsCell ProliferationMammary Neoplasms, ExperimentalAntineoplastic AgentsGRB7 Adaptor ProteinTyrphostinsTumor Cells, CulturedTransforming Growth Factor alphaAntibodies, Monoclonal, HumanizedGene AmplificationProtein Kinase InhibitorsDrug Resistance, NeoplasmMammary Glands, AnimalCell Transformation, NeoplasticHSP90 Heat-Shock ProteinsSchwann CellsProtein BindingMice, TransgenicIntercellular Signaling Peptides and ProteinsBenzothiazolesEnzyme ActivationNonheme Iron ProteinsReceptor Protein-Tyrosine KinasesAntibodies, MonoclonalImmunohistochemistryCell DivisionTyrosineTransfectionBlotting, WesternRNA, MessengerDown-RegulationProtein Structure, TertiaryCell LineCell MovementCell SurvivalProtein IsoformsMolecular Sequence DataApoptosisReverse Transcriptase Polymerase Chain ReactionRNA, Small InterferingMammary Glands, HumanAdaptor Proteins, Signal TransducingExtracellular Signal-Regulated MAP KinasesImmunoprecipitationMice, NudeMutationXenograft Model Antitumor AssaysCell Growth ProcessesTranscription Factor AP-2Amino Acid SequenceNeoplasm InvasivenessEstrogen Receptor ModulatorsQuinonesCOS CellsCells, CulturedImmunoblottingProtein MultimerizationModels, BiologicalMice, SCIDNeoplasmsIn Situ Hybridization, FluorescenceRecombinant Fusion ProteinsEnzyme InhibitorsAdenocarcinomaEpithelial CellsMitogen-Activated Protein KinasesMCF-7 CellsMice, KnockoutGene DosageUp-RegulationRifabutinPhosphotyrosineMitogen-Activated Protein Kinase 3MAP Kinase Signaling SystemReceptors, EstrogenSialomucinsProtein-Tyrosine KinasesBreast3T3 CellsBase SequenceProtein-Serine-Threonine Kinases