PolyadenylationmRNA Cleavage and Polyadenylation FactorsRNA 3' Polyadenylation SignalsPoly APolynucleotide AdenylyltransferaseCleavage And Polyadenylation Specificity FactorRNA, MessengerBase SequenceMolecular Sequence DataRNA Processing, Post-TranscriptionalCleavage Stimulation Factor3' Untranslated RegionsRNA PrecursorsRNA 3' End ProcessingRNA-Binding ProteinsAmino Acid SequenceTranscription, GeneticRNA SplicingRNA StabilityProtein BiosynthesisCloning, MolecularRNA CleavageIntronsRNAHeLa CellsDNA CleavageDNARNA, ViralCell LineCytoplasmRNA, FungalRibonucleoprotein, U1 Small NuclearRegulatory Sequences, Nucleic AcidRegulatory Sequences, Ribonucleic AcidAlternative SplicingRNA IsoformsBinding SitesBlotting, NorthernGenes, mosExonsExoribonucleasesOocytesNucleic Acid ConformationMutationGene Expression RegulationNucleic Acid PrecursorsPlasmidsCleavage Stage, OvumDNA, ComplementarySubstrate SpecificityHeterogeneous-Nuclear Ribonucleoprotein Group F-H3' Flanking RegionPoly(A)-Binding ProteinsSequence Homology, Nucleic AcidGenesRibonucleoproteinsProtein BindingDNA Restriction EnzymesSaccharomyces cerevisiaeCell NucleusRestriction MappingPoly(A)-Binding Protein ISingle-Strand Specific DNA and RNA EndonucleasesNucleic Acid HybridizationSequence Homology, Amino AcidXenopus ProteinsHydrolysisKineticsDNA PrimersRNA CapsPolyribonucleotide NucleotidyltransferaseTransfectionRNA Splice SitesXenopus laevisSimian virus 40Rous sarcoma virusRNA Polymerase IISaccharomyces cerevisiae ProteinsProtein Processing, Post-TranslationalSequence AlignmentProto-Oncogene Proteins c-mosXenopusPromoter Regions, GeneticExosome Multienzyme Ribonuclease ComplexEndoribonucleasesPolyribosomesConserved SequenceNuclear ProteinsPolymerase Chain ReactionEndopeptidasesExpressed Sequence TagsHeterogeneous-Nuclear Ribonucleoprotein Group CGenes, ViralProtein Structure, TertiaryEscherichia coliHeterogeneous-Nuclear RibonucleoproteinsTerminator Regions, GeneticCells, CulturedSequence Analysis, RNAGene Expression