2021
SARS-CoV-2 expresses a microRNA-like small RNA able to selectively repress host genes
Pawlica P, Yario TA, White S, Wang J, Moss WN, Hui P, Vinetz JM, Steitz JA. SARS-CoV-2 expresses a microRNA-like small RNA able to selectively repress host genes. Proceedings Of The National Academy Of Sciences Of The United States Of America 2021, 118: e2116668118. PMID: 34903581, PMCID: PMC8719879, DOI: 10.1073/pnas.2116668118.Peer-Reviewed Original ResearchConceptsBasic leucine zipper ATF-like transcription factor 2Small RNAsHuman lung-derived cell linesSARS-CoV-2 infectionLung-derived cell linesRNA interference (RNAi) pathwayHost miRNA levelsTranscription factor 2Cellular machineryInterference pathwayDrosha proteinSARS-CoV-2-infected individualsHost genesSevere acute respiratory syndrome coronavirus 2Acute respiratory syndrome coronavirus 2Respiratory syndrome coronavirus 2Host miRNAsPutative targetsSyndrome coronavirus 2SARS-CoV-2MiRNA levelsFactor 2Cell linesNasopharyngeal swabsCoronavirus 2tRNA-like leader-trailer interaction promotes 3′-end maturation of MALAT1
Torabi SF, DeGregorio SJ, Steitz JA. tRNA-like leader-trailer interaction promotes 3′-end maturation of MALAT1. RNA 2021, 27: 1140-1147. PMID: 34253686, PMCID: PMC8457004, DOI: 10.1261/rna.078810.121.Peer-Reviewed Original ResearchStructural analyses of an RNA stability element interacting with poly(A)
Torabi SF, Chen YL, Zhang K, Wang J, DeGregorio SJ, Vaidya AT, Su Z, Pabit SA, Chiu W, Pollack L, Steitz JA. Structural analyses of an RNA stability element interacting with poly(A). Proceedings Of The National Academy Of Sciences Of The United States Of America 2021, 118: e2026656118. PMID: 33785601, PMCID: PMC8040590, DOI: 10.1073/pnas.2026656118.Peer-Reviewed Original ResearchConceptsRNA stability elementCis-acting RNA elementsGlobal conformational changesRich internal loopCryo-electron microscopyRice transposable elementsDiverse genomesDouble-helical regionsSmall-angle X-ray scatteringEne motifTransposable elementsGlobal structural changesRNA interactionsRNA stabilityBioinformatics studiesRNA elementsStability elementShort helixConformational changesDecay pathwaysInternal loopBiochemical structureTriplex structureBindingMotifHyperosmotic stress alters the RNA polymerase II interactome and induces readthrough transcription despite widespread transcriptional repression
Rosa-Mercado NA, Zimmer JT, Apostolidi M, Rinehart J, Simon MD, Steitz JA. Hyperosmotic stress alters the RNA polymerase II interactome and induces readthrough transcription despite widespread transcriptional repression. Molecular Cell 2021, 81: 502-513.e4. PMID: 33400923, PMCID: PMC7867636, DOI: 10.1016/j.molcel.2020.12.002.Peer-Reviewed Original ResearchConceptsWidespread transcriptional repressionTranscriptional repressionPol IIIntegrator complex subunitsRNA polymerase IIGenome-wide lossStress-induced redistributionParental genesTranscriptional outputDoG inductionPolymerase IIChIP sequencingHuman cell linesUpstream geneComplex subunitsPolyadenylation factorsTranscription profilesReadthrough transcriptsCatalytic subunitIntegrator activityCellular stressHyperosmotic stressTranscriptional levelTranscription resultsGenes
2019
Quantitative Fluorescence In Situ Hybridization (FISH) and Immunofluorescence (IF) of Specific Gene Products in KSHV-Infected Cells.
Vallery TK, Steitz JA. Quantitative Fluorescence In Situ Hybridization (FISH) and Immunofluorescence (IF) of Specific Gene Products in KSHV-Infected Cells. Journal Of Visualized Experiments 2019 PMID: 31524859, PMCID: PMC6750728, DOI: 10.3791/59697.Peer-Reviewed Original ResearchConceptsRNA FISHSarcoma-associated herpesvirusSpecific RNAViral replication compartmentsSpecific gene productsSitu hybridizationKaposi's sarcoma-associated herpesvirusMultiple cell typesReplication compartmentsGene productsViral genesHost cellsCell typesQuantitative fluorescenceNuclear factoriesFishCell morphologyHuman hostMechanistic insightsSpatiotemporal activityUninfected cellsBehavior of biomoleculesRNAProteinCellsStructural Basis for Target-Directed MicroRNA Degradation
Sheu-Gruttadauria J, Pawlica P, Klum SM, Wang S, Yario TA, Schirle Oakdale NT, Steitz JA, MacRae IJ. Structural Basis for Target-Directed MicroRNA Degradation. Molecular Cell 2019, 75: 1243-1255.e7. PMID: 31353209, PMCID: PMC6754277, DOI: 10.1016/j.molcel.2019.06.019.Peer-Reviewed Original ResearchConceptsTarget-directed miRNA degradationMiRNA 3' endMicroRNA degradationMiRNA degradationHuman Ago2MiRNA activityMiRNA stabilityStructural basisGene expressionTarget RNALinker flexibilityMiRNAsEnd displaysFlexible linkerRNAKey determinantArgonauteHAgo2Enzymatic attackAgo2DegradationDuplexMicroRNAsMiRNAIsoforms
2018
Two herpesviral noncoding PAN RNAs are functionally homologous but do not associate with common chromatin loci
Withers JB, Li ES, Vallery TK, Yario TA, Steitz JA. Two herpesviral noncoding PAN RNAs are functionally homologous but do not associate with common chromatin loci. PLOS Pathogens 2018, 14: e1007389. PMID: 30383841, PMCID: PMC6233925, DOI: 10.1371/journal.ppat.1007389.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsCell LineCell NucleusChromatinGene Expression Regulation, ViralGene Knockdown TechniquesHEK293 CellsHerpesviridaeHerpesviridae InfectionsHerpesvirus 8, HumanHost-Pathogen InteractionsHumansMacaca mulattaRhadinovirusRNA, Long NoncodingRNA, MessengerRNA, NuclearRNA, ViralTumor Virus InfectionsViral ProteinsVirus ReplicationConceptsKaposi's sarcoma-associated herpesvirusPAN RNAPAN RNA expressionGene expressionChromatin lociSarcoma-associated herpesvirusViral mRNAsSpecific chromatin lociNuclear mRNA exportNucleotide sequence conservationAbundant nuclear RNARNA expressionLytic viral gene expressionViral gene expressionMRNA exportRNA associationSequence conservationPolyadenylated transcriptsViral chromatinLoci differHost chromatinRNA functionCell fractionationNuclear RNAProgeny virion releaseKaposi's Sarcoma-Associated Herpesvirus mRNA Accumulation in Nuclear Foci Is Influenced by Viral DNA Replication and Viral Noncoding Polyadenylated Nuclear RNA
Vallery TK, Withers JB, Andoh JA, Steitz JA. Kaposi's Sarcoma-Associated Herpesvirus mRNA Accumulation in Nuclear Foci Is Influenced by Viral DNA Replication and Viral Noncoding Polyadenylated Nuclear RNA. Journal Of Virology 2018, 92: 10.1128/jvi.00220-18. PMID: 29643239, PMCID: PMC6002709, DOI: 10.1128/jvi.00220-18.Peer-Reviewed Original ResearchConceptsKaposi's sarcoma-associated herpesvirusViral replication compartmentsSarcoma-associated herpesvirusReplication compartmentsViral DNA replicationViral DNA synthesisPAN RNANuclear fociDNA replicationNuclear RNAViral mRNAsDNA synthesisViral transcriptsLytic phaseIntronless viral mRNAsHijack host machineryActive viral DNA replicationPolyadenylated Nuclear RNAHost cell nucleusViral noncoding RNAViral RNA accumulationShutoff effectHuman cell hostSpatiotemporal regulationViral life cycle
2017
An Exportin-1–dependent microRNA biogenesis pathway during human cell quiescence
Martinez I, Hayes KE, Barr JA, Harold AD, Xie M, Bukhari SIA, Vasudevan S, Steitz JA, DiMaio D. An Exportin-1–dependent microRNA biogenesis pathway during human cell quiescence. Proceedings Of The National Academy Of Sciences Of The United States Of America 2017, 114: e4961-e4970. PMID: 28584122, PMCID: PMC5488920, DOI: 10.1073/pnas.1618732114.Peer-Reviewed Original ResearchConceptsBiogenesis pathwayExportin 1Exportin-5Canonical miRNA biogenesis pathwayCanonical miRNA biogenesisTrimethylguanosine synthase 1MicroRNA biogenesis pathwayMiRNA biogenesis pathwayMiRNA processing pathwayStem cell biologyCellular growth arrestGroup of miRNAsExpression of miRNAsPrimary human fibroblastsMiRNA biogenesisPrimary miRNAsCellular quiescenceTissue homeostasisCell biologyProliferative arrestSpecific miRNAsCell quiescenceGrowth arrestBiogenesisMiRNAsSettling the m6A debate: methylation of mature mRNA is not dynamic but accelerates turnover
Rosa-Mercado NA, Withers JB, Steitz JA. Settling the m6A debate: methylation of mature mRNA is not dynamic but accelerates turnover. Genes & Development 2017, 31: 957-958. PMID: 28637691, PMCID: PMC5495124, DOI: 10.1101/gad.302695.117.Peer-Reviewed Original ResearchConceptsPre-mRNA splicing eventsPost-transcriptional modificationsMRNA biogenesisDifferent subcellular fractionsMRNA biologySplicing eventsMature mRNABiochemical approachesRNA transcriptsPivotal regulatorMethylation levelsHeLa cellsSubcellular fractionsRNA nucleosidesMethylationTranscriptsBiogenesisChromatinSplicingMethyladenosineExonsGenesRNABiologyRegulator
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 factorsCellsCRISPRCodonHomologyMethyltransferase-like protein 16 binds the 3′-terminal triple helix of MALAT1 long noncoding RNA
Brown JA, Kinzig CG, DeGregorio SJ, Steitz JA. Methyltransferase-like protein 16 binds the 3′-terminal triple helix of MALAT1 long noncoding RNA. Proceedings Of The National Academy Of Sciences Of The United States Of America 2016, 113: 14013-14018. PMID: 27872311, PMCID: PMC5150381, DOI: 10.1073/pnas.1614759113.Peer-Reviewed Original ResearchConceptsGel shift assaysMetastasis-associated lung adenocarcinoma transcript 1RNA triple helicesPutative RNA methyltransferaseCompetitive gel shift assaysRNA-protein interactionsRNA stability elementAbundant nuclear proteinNative gel shift assaysRich internal loopSitu proximity ligation assayTriple helixHEK293T cell lysatesStem-loop structureProximity ligation assayT cell lysatesRNA methyltransferaseVivo UVNucleotide compositionNuclear proteinsLung adenocarcinoma transcript 1RNA immunoprecipitationStability elementMETTL16Rich tractA proximity-dependent assay for specific RNA–protein interactions in intact cells
Zhang W, Xie M, Shu MD, Steitz JA, DiMaio D. A proximity-dependent assay for specific RNA–protein interactions in intact cells. RNA 2016, 22: 1785-1792. PMID: 27659050, PMCID: PMC5066630, DOI: 10.1261/rna.058248.116.Peer-Reviewed Original ResearchConceptsRNA-protein interactionsSpecific RNA-protein interactionsProximity ligation assayTarget RNAProtein-protein interactionsSame cellular compartmentCellular compartmentsRNA targetsIntact cellsLigation assayRNADiscrete compartmentsProteinDNA oligonucleotideFluorescent signalOligonucleotide complementaryCellsCompartmentsAssaysColocalizationHigh specificityInteractionStaining methodOligonucleotideAdaptationIntronless β-Globin Reporter: A Tool for Studying Nuclear RNA Stability Elements
Brown JA, Steitz JA. Intronless β-Globin Reporter: A Tool for Studying Nuclear RNA Stability Elements. Methods In Molecular Biology 2016, 1428: 77-92. PMID: 27236793, PMCID: PMC5547891, DOI: 10.1007/978-1-4939-3625-0_5.Peer-Reviewed Original ResearchReadthrough transcription: How are DoGs made and what do they do?
Vilborg A, Steitz JA. Readthrough transcription: How are DoGs made and what do they do? RNA Biology 2016, 14: 632-636. PMID: 26861889, PMCID: PMC5449079, DOI: 10.1080/15476286.2016.1149680.Peer-Reviewed Original ResearchConceptsDoG inductionDownstream of genesMammalian gene expressionLevel of transcriptionPervasive transcriptionIntergenic transcriptionTranscription terminationPossible molecular mechanismsTranscriptional readthroughOsmotic stressGene expressionMolecular mechanismsEndoplasmic reticulumTranscriptionIP3 receptorOutstanding questionsTranscriptsBiogenesisGenomeInductionReadthroughGenesCalcium releaseReticulumMechanismMyriad Triple-Helix-Forming Structures in the Transposable Element RNAs of Plants and Fungi
Tycowski KT, Shu MD, Steitz JA. Myriad Triple-Helix-Forming Structures in the Transposable Element RNAs of Plants and Fungi. Cell Reports 2016, 15: 1266-1276. PMID: 27134163, PMCID: PMC4864102, DOI: 10.1016/j.celrep.2016.04.010.Peer-Reviewed Original ResearchConceptsTransposable elementsCellular noncoding RNAsPotential evolutionary consequencesCis-acting RNA structuresIntron lossEvolutionary consequencesBioinformatic identificationTE transcriptsReporter transcriptFish speciesNoncoding RNAsElement RNAHorizontal transferRNA structureTransposase geneRich tractHuman cellsTriple helix formationBase triplesRNAEne coreTranscriptsTriple helixIntronlessGenomeEBV noncoding RNA EBER2 interacts with host RNA-binding proteins to regulate viral gene expression
Lee N, Yario TA, Gao JS, Steitz JA. EBV noncoding RNA EBER2 interacts with host RNA-binding proteins to regulate viral gene expression. Proceedings Of The National Academy Of Sciences Of The United States Of America 2016, 113: 3221-3226. PMID: 26951683, PMCID: PMC4812724, DOI: 10.1073/pnas.1601773113.Peer-Reviewed Original ResearchConceptsNon-POU domain-containing octamer-binding proteinGene expressionNoncoding RNAsHost RNAAbundant noncoding RNAsCellular noncoding RNAsRNA-protein crosslinkingOctamer-binding proteinHost gene expressionBox protein 5Viral gene expressionHost transcription factorsGlutamine richFactor prolineIntermediary proteinsNuclear bodiesTranscription factorsRNA 2Host proteinsRecombinant proteinsProtein resultsProtein componentsProtein 5Protein 14RNA
2015
A heterotrimer model of the complete Microprocessor complex revealed by single-molecule subunit counting
Herbert KM, Sarkar SK, Mills M, De la Herran H, Neuman KC, Steitz JA. A heterotrimer model of the complete Microprocessor complex revealed by single-molecule subunit counting. RNA 2015, 22: 175-183. PMID: 26683315, PMCID: PMC4712668, DOI: 10.1261/rna.054684.115.Peer-Reviewed Original ResearchConceptsPri-miRNA substratesMicroprocessor complexHeterotrimeric complexDeletion constructsSingle-molecule subunit countingRNA-binding proteinFull-length proteinAbsence of RNAStem-loop structureSingle-molecule photobleachingSize exclusion chromatographyPresence of RNARNaseIII enzymesPhotobleaching assaysMicroRNA biogenesisSubunit countingMammalian cellsDroshaDGCR8Fluorescent proteinHuman cellsMultiple copiesRNAProteinExact stoichiometryHerpesvirus saimiri MicroRNAs Preferentially Target Host Cell Cycle Regulators
Guo YE, Oei T, Steitz JA. Herpesvirus saimiri MicroRNAs Preferentially Target Host Cell Cycle Regulators. Journal Of Virology 2015, 89: 10901-10911. PMID: 26292323, PMCID: PMC4621106, DOI: 10.1128/jvi.01884-15.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBinding SitesBlotting, WesternCallithrixCDC2 Protein KinaseCell Cycle ProteinsEndoplasmic Reticulum Chaperone BiPHeat-Shock ProteinsHEK293 CellsHerpesvirus 2, SaimiriineHigh-Throughput Nucleotide SequencingHumansImmunoprecipitationLuciferasesMicroRNAsPhosphorylationRNA, MessengerT-LymphocytesConceptsHost cell cycle regulatorsViral miRNAsCell cycle regulatorsHerpesvirus saimiriMRNA targetsCycle regulatorsProtein-coding genesPre-miRNA hairpinsCross-linking immunoprecipitationGene ontology analysisHigh-throughput sequencingOpen reading frameOncogenic Herpesvirus saimiriCyclin-dependent kinasesP300 transcriptional coactivatorCell cycle progressionKey negative regulatorMarmoset T cellsHITS-CLIPRepresses expressionOntology analysisTranscriptional coactivatorViral life cyclePrimary transcriptCellular transformationNoncoding RNA‐guided recruitment of transcription factors: A prevalent but undocumented mechanism?
Lee N, Steitz JA. Noncoding RNA‐guided recruitment of transcription factors: A prevalent but undocumented mechanism? BioEssays 2015, 37: 936-941. PMID: 26200477, PMCID: PMC4721591, DOI: 10.1002/bies.201500060.Peer-Reviewed Original ResearchConceptsTranscription factorsDomains of TFsCognate binding motifsDNA target sitesAssociated transcription factorsRNA-RNA interactionsTarget siteNascent transcriptsCell identityTarget lociCellular processesNoncoding RNAsBinding motifProper regulationViral genomeUndocumented mechanismGenomeDNAViral DNARNARecruitmentNcRNAsNcRNARNAsLoci