Heterogeneous-Nuclear RibonucleoproteinsHeterogeneous-Nuclear Ribonucleoprotein Group A-BHeterogeneous-Nuclear Ribonucleoprotein Group CHeterogeneous-Nuclear Ribonucleoprotein KHeterogeneous-Nuclear Ribonucleoprotein Group MHeterogeneous-Nuclear Ribonucleoprotein Group F-HRibonucleoproteinsRNA, Heterogeneous NuclearHeterogeneous-Nuclear Ribonucleoprotein LHeterogeneous-Nuclear Ribonucleoprotein URibonucleoproteins, Small NuclearRibonucleoprotein, U1 Small NuclearHeterogeneous-Nuclear Ribonucleoprotein DRNA-Binding ProteinsRibonucleoprotein, U2 Small NuclearRNA SplicingHeLa CellsMolecular Sequence DataRNA PrecursorsSpliceosomesRibonucleoprotein, U4-U6 Small NuclearCell NucleusBase SequenceRNA, Small NuclearProtein BindingRNARNA, MessengersnRNP Core ProteinsRibonucleoprotein, U5 Small NuclearAmino Acid SequenceAlternative SplicingPoly C3' Untranslated RegionsThymus HormonesNuclear ProteinsNucleoproteinsPolypyrimidine Tract-Binding ProteinRibonucleoprotein, U7 Small NuclearTranscription, GeneticBinding SitesCytoplasmExonsCell LineAutoantigensRNA TransportNucleic Acid ConformationElectrophoresis, Gel, Two-DimensionalProtein BiosynthesisProtein-Arginine N-MethyltransferasesRNA Processing, Post-Transcriptional5' Untranslated Regions