2016
Fluorescence Amplification Method for Forward Genetic Discovery of Factors in Human mRNA Degradation
Alexandrov A, Shu MD, Steitz JA. Fluorescence Amplification Method for Forward Genetic Discovery of Factors in Human mRNA Degradation. Molecular Cell 2016, 65: 191-201. PMID: 28017590, PMCID: PMC5301997, DOI: 10.1016/j.molcel.2016.11.032.Peer-Reviewed Original ResearchConceptsNonsense-mediated decayPremature termination codonNMD factorsNMD pathwayMRNA degradationHuman cellsForward genetic screeningGenetic screen identifiesHuman genetic diseasesHuman candidate genesNonsense suppression therapyModel organismsGenetic screeningScreen identifiesTermination codonCandidate genesGenetic discoveriesReporter fluorescenceGenetic diseasesPathwayAdditional key factorsCellsCRISPRCodonHomology
2012
Human spliceosomal protein CWC22 plays a role in coupling splicing to exon junction complex deposition and nonsense-mediated decay
Alexandrov A, Colognori D, Shu MD, Steitz JA. Human spliceosomal protein CWC22 plays a role in coupling splicing to exon junction complex deposition and nonsense-mediated decay. Proceedings Of The National Academy Of Sciences Of The United States Of America 2012, 109: 21313-21318. PMID: 23236153, PMCID: PMC3535618, DOI: 10.1073/pnas.1219725110.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceCarrier ProteinsEukaryotic Initiation Factor-4AEukaryotic Initiation Factor-4GExonsGene Knockdown TechniquesHEK293 CellsHeLa CellsHumansMolecular Sequence DataMutationNonsense Mediated mRNA DecayNuclear ProteinsPeptidylprolyl IsomeraseProtein BindingRNA SplicingRNA, MessengerRNA-Binding ProteinsSpliceosomesConceptsExon junction complexEJC depositionMultiprotein exon junction complexNonsense-mediated decay pathwayNonsense-mediated decaySpecific roleEJC assemblyEJC formationComplex eukaryotesDisrupts associationMetazoan mRNAsSpliceosomal proteinsCellular mRNAsHost genesSplicing defectsJunction complexDownstream eventsSplicingNatural substrateDecay pathwaysCWC22Depletion yieldsNMDMutationsMRNA
2004
Splicing of U12-type introns deposits an exon junction complex competent to induce nonsense-mediated mRNA decay
Hirose T, Shu MD, Steitz JA. Splicing of U12-type introns deposits an exon junction complex competent to induce nonsense-mediated mRNA decay. Proceedings Of The National Academy Of Sciences Of The United States Of America 2004, 101: 17976-17981. PMID: 15608055, PMCID: PMC539812, DOI: 10.1073/pnas.0408435102.Peer-Reviewed Original ResearchMeSH KeywordsCell LineCell NucleusCodon, NonsenseDNA, ComplementaryEvolution, MolecularExonsGene Expression RegulationHeLa CellsHumansImmunoprecipitationIntronsMutagenesis, Site-DirectedOpen Reading FramesPlasmidsRibonuclease HRibonucleoproteins, Small NuclearRNARNA PrecursorsRNA SplicingRNA, MessengerRNA, Small NuclearSpliceosomesTime FactorsTransfectionConceptsExon junction complexU12-type intronsOpen reading frameNonsense-mediated mRNA decayU12-type spliceosomeNonsense-mediated decaySmall nuclear ribonucleoproteinU2-type spliceosomePremature termination codonEJC assemblyMetazoan cellsMRNA decayEvolutionary ageDownstream functionsIntron removalNuclear ribonucleoproteinReading frameExon junctionsTermination codonJunction complexGene expressionIntron downstreamSpliceosomeIntronsSplicing
2001
Communication of the Position of Exon-Exon Junctions to the mRNA Surveillance Machinery by the Protein RNPS1
Lykke-Andersen J, Shu M, Steitz J. Communication of the Position of Exon-Exon Junctions to the mRNA Surveillance Machinery by the Protein RNPS1. Science 2001, 293: 1836-1839. PMID: 11546874, DOI: 10.1126/science.1062786.Peer-Reviewed Original ResearchMeSH Keywords3' Untranslated RegionsAnimalsCell LineDNA-Binding ProteinsExonsFungal ProteinsGlobinsHeLa CellsHumansMacromolecular SubstancesMiceModels, BiologicalPrecipitin TestsProtein BindingRecombinant Fusion ProteinsRibonucleoproteinsRNA HelicasesRNA SplicingRNA, MessengerRNA-Binding ProteinsSaccharomyces cerevisiae ProteinsTrans-ActivatorsTransfectionConceptsNonsense-mediated decayExon-exon junctionsMRNA surveillanceMRNA quality controlMRNA surveillance machinerySelective nuclear exportBeta-globin mRNAPremature termination codonUpf complexMature mRNASurveillance machineryNuclear exportAberrant mRNAsMammalian cellsTermination codonUntranslated regionSplice junctionsRNPS1MRNADual roleCentral componentComplexesCodonSubunitsMachinery
2000
Human Upf Proteins Target an mRNA for Nonsense-Mediated Decay When Bound Downstream of a Termination Codon
Lykke-Andersen J, Shu M, Steitz J. Human Upf Proteins Target an mRNA for Nonsense-Mediated Decay When Bound Downstream of a Termination Codon. Cell 2000, 103: 1121-1131. PMID: 11163187, DOI: 10.1016/s0092-8674(00)00214-2.Peer-Reviewed Original ResearchConceptsNonsense-mediated decayExon-exon junctionsTermination codonMRNA exon-exon junctionsNovel human proteinTranslation termination siteHeLa cell extractsBeta-globin mRNAPremature termination codonUpf proteinsEukaryotic cellsAberrant mRNAsHuman proteinsTermination sitesIntact cellsCell extractsCodonHUpf2ProteinMRNAHUpf1CellsCytoplasmCytoplasmicTethering