SpliceosomesRibonucleoproteins, Small NuclearRNA, Small NuclearRibonucleoprotein, U2 Small NuclearRNA SplicingRibonucleoprotein, U4-U6 Small NuclearRibonucleoprotein, U1 Small NuclearRNA PrecursorsIntronsRibonucleoprotein, U5 Small NuclearsnRNP Core ProteinsRNA-Binding ProteinsMolecular Sequence DataJunctional Adhesion MoleculesBase SequenceSMN Complex ProteinsCoiled BodiesNucleic Acid ConformationPseudouridineRNA Splice SitesHeLa CellsRNA, FungalDEAD Box Protein 20RNARNA HelicasesRibonucleoproteinsConserved SequenceEvolution, MolecularRNA Processing, Post-TranscriptionalMuscular Atrophy, SpinalRNA, MessengerAmino Acid SequenceBrinolaseRNA, GuideRibonucleoproteins, Small NucleolarRNA CapsExonsDEAD-box RNA Helicases