Isotope LabelingIsotopesDNA Transposable ElementsNitrogen IsotopesOxygen IsotopesCarbon IsotopesResponse ElementsEnhancer Elements, GeneticPromoter Regions, GeneticTrace ElementsRegulatory Sequences, Nucleic AcidElementsFinite Element AnalysisTranscription, GeneticZinc IsotopesAlu ElementsSulfur IsotopesBase SequenceMolecular Sequence DataTranscription FactorsDeuteriumDNA-Binding ProteinsLong Interspersed Nucleotide ElementsIron IsotopesRegulatory Elements, TranscriptionalBinding SitesGene Expression RegulationShort Interspersed Nucleotide ElementsRepetitive Sequences, Nucleic AcidDNASequence Homology, Nucleic AcidStrontium IsotopesAmino Acid SequencePlasmidsRNA, MessengerCell LineTransfectionMutationCloning, MolecularGenes, ReporterRetroelementsProtein BindingRadioisotope Dilution TechniqueChloramphenicol O-AcetyltransferaseRestriction MappingTranscriptional ActivationNuclear ProteinsGenes, RegulatorConserved SequenceSequence Analysis, DNANucleic Acid ConformationMass SpectrometryIntronsSequence DeletionKineticsHeLa Cells