Receptors, LeptinLeptinMutationPoint MutationMutation, MissenseReceptors, Cell SurfaceDNA Mutational AnalysisReceptor, Epidermal Growth FactorHypothalamusHeterozygotePedigreeHyperlipoproteinemia Type IIObesityReceptor, Melanocortin, Type 4ExonsAmino Acid SubstitutionLung NeoplasmsMolecular Sequence DataQuinazolinesSignal TransductionGenes, erbB-1Base SequenceFrameshift MutationPolymerase Chain ReactionSTAT3 Transcription FactorAmino Acid SequenceCarrier ProteinsCarcinoma, Non-Small-Cell LungReceptors, Calcium-SensingPhenotype