2004
An Intronic Enhancer Regulates Splicing of the Twintron of Drosophila melanogaster prospero Pre-mRNA by Two Different Spliceosomes
Scamborova P, Wong A, Steitz JA. An Intronic Enhancer Regulates Splicing of the Twintron of Drosophila melanogaster prospero Pre-mRNA by Two Different Spliceosomes. Molecular And Cellular Biology 2004, 24: 1855-1869. PMID: 14966268, PMCID: PMC350559, DOI: 10.1128/mcb.24.5.1855-1869.2004.Peer-Reviewed Original ResearchConceptsPurine-rich elementSplicing pathwaySplice siteU12-type spliceosomeU12-type splicingVitro splicing systemForms of mRNAAlternative splicingEarly embryogenesisKc cellsIntron sequencesPre-mRNASystematic deletionIntronic enhancerSplicingSequence requirementsIntron regionsEnhancer elementsNucleotides downstreamMolecular mechanismsTwintronSpliceosomeSplicing systemMutation analysisPathway
2003
Splicing-Dependent and -Independent Modes of Assembly for Intron-Encoded Box C/D snoRNPs in Mammalian Cells
Hirose T, Shu MD, Steitz JA. Splicing-Dependent and -Independent Modes of Assembly for Intron-Encoded Box C/D snoRNPs in Mammalian Cells. Molecular Cell 2003, 12: 113-123. PMID: 12887897, DOI: 10.1016/s1097-2765(03)00267-3.Peer-Reviewed Original ResearchConceptsBox C/D snoRNAsSplice siteSnoRNP proteinsD snoRNAsSnoRNP assemblyMammalian cellsHost intronBox C/D snoRNPsSmall nucleolar RNAsD snoRNPsRRNA modificationNucleolar RNAsHost genesActive splicingNts upstreamIntronsEfficient expressionSnoRNAsStable stemSplicingVivo analysisProteinAssemblyBlockage experimentsStem
2001
Non-coding snoRNA host genes in Drosophila: expression strategies for modification guide snoRNAs
Tycowski K, Steitz J. Non-coding snoRNA host genes in Drosophila: expression strategies for modification guide snoRNAs. European Journal Of Cell Biology 2001, 80: 119-125. PMID: 11302516, DOI: 10.1078/0171-9335-00150.Peer-Reviewed Original ResearchConceptsSnoRNA host genesModification-guide snoRNAsHost genesGuide snoRNAsSplice siteDifferent eukaryotic kingdomsEukaryotic kingdomsPolycistronic unitsD. melanogasterProtein codingTranslational apparatusConserved distanceSnoRNA sequencesTrailer sequencesIntron lariatPrimary transcriptFunctional proteinsNucleotides upstreamExpression strategyExonucleolytic activitySnoRNAsIntronsGenesDebranching activityProtein
1995
U12 snRNA in vertebrates: evolutionary conservation of 5' sequences implicated in splicing of pre-mRNAs containing a minor class of introns.
Tarn WY, Yario TA, Steitz JA. U12 snRNA in vertebrates: evolutionary conservation of 5' sequences implicated in splicing of pre-mRNAs containing a minor class of introns. RNA 1995, 1: 644-56. PMID: 7489523, PMCID: PMC1369308.Peer-Reviewed Original ResearchConceptsU12 snRNASnRNA genesMinor class intronsRNA polymerase IIU6 snRNA sequencesMinor classPutative branch siteNoncanonical splice sitesMajor classesEvolutionary conservationBranch site sequencePolymerase IIU2 genesFunctional genesSnRNA sequencesIntronsConsensus sequenceSnRNASite sequenceUpstream elementSplice siteSplicingGenesTranscriptionBranch siteModulation of 5' splice site choice in pre-messenger RNA by two distinct steps.
Tarn WY, Steitz JA. Modulation of 5' splice site choice in pre-messenger RNA by two distinct steps. Proceedings Of The National Academy Of Sciences Of The United States Of America 1995, 92: 2504-2508. PMID: 7708674, PMCID: PMC42246, DOI: 10.1073/pnas.92.7.2504.Peer-Reviewed Original ResearchConceptsSmall nuclear ribonucleoproteinU1 small nuclear ribonucleoproteinSplice site choicePre-messenger RNASR proteinsSplice site selectionSplice siteSite choiceSer/Arg-rich (SR) proteinsU2 small nuclear ribonucleoproteinU1 snRNP functionsHeLa cell nuclear extractsEssential splicing factorArg-rich proteinsCell nuclear extractsDistinct stepsSnRNP functionSite selectionSplicing factorsU1 bindingNuclear ribonucleoproteinU1 RNANuclear extractsProteinRNA
1994
SR proteins can compensate for the loss of U1 snRNP functions in vitro.
Tarn WY, Steitz JA. SR proteins can compensate for the loss of U1 snRNP functions in vitro. Genes & Development 1994, 8: 2704-2717. PMID: 7958927, DOI: 10.1101/gad.8.22.2704.Peer-Reviewed Original ResearchConceptsSR proteinsSplice site recognitionSplice siteU1 snRNPsU1 snRNP functionsEssential splicing factorPre-mRNA substrateSplice site choiceNative gel analysisSplice site selectionMethyl oligoribonucleotideCross-linking studiesSnRNP functionSplicing factorsU1 snRNPU1 snRNASite recognitionSite choiceGel analysisRescue splicingProteinSplicing systemIntronsSnRNPs
1993
The U5 and U6 Small Nuclear RNAs as Active Site Components of the Spliceosome
Sontheimer E, Steitz J. The U5 and U6 Small Nuclear RNAs as Active Site Components of the Spliceosome. Science 1993, 262: 1989-1996. PMID: 8266094, DOI: 10.1126/science.8266094.Peer-Reviewed Original ResearchConceptsSmall nuclear RNANuclear RNAPrecursor messenger RNA splicingLariat intermediateU6 small nuclear RNAMessenger RNA splicingExon 1Self-splicing intronsActive site componentsRNA splicingMammalian spliceosomeU6 RNARNA contactsMechanistic parallelsPre-mRNAVitro splicingSubsequent splicingSplicingSpliceosomeSplice siteLast residueFirst residueFunctional interactionIntron productsRNAMutations in the conserved loop of human U5 snRNA generate use of novel cryptic 5′ splice sites in vivo.
Cortes JJ, Sontheimer EJ, Seiwert SD, Steitz JA. Mutations in the conserved loop of human U5 snRNA generate use of novel cryptic 5′ splice sites in vivo. The EMBO Journal 1993, 12: 5181-5189. PMID: 8262061, PMCID: PMC413781, DOI: 10.1002/j.1460-2075.1993.tb06213.x.Peer-Reviewed Original ResearchConceptsSplice siteRabbit beta-globin geneBeta-globin transcriptsBeta-globin geneU5 genesConserved loopMRNA splicingU5 snRNASecond intronFirst exonExon sequencesLoop mutantsSecond exonExpression vectorTransient transfectionCryptic sitesNovel siteHeLa cellsGT dinucleotideExonsExon 1U5 sequencesSnRNAMutationsVivo systemUncoupling Two Functions of the U1 Small Nuclear Ribonucleoprotein Particle During in Vitro Splicing
Seiwert S, Steitz J. Uncoupling Two Functions of the U1 Small Nuclear Ribonucleoprotein Particle During in Vitro Splicing. Molecular And Cellular Biology 1993, 13: 3135-3145. DOI: 10.1128/mcb.13.6.3135-3145.1993.Peer-Reviewed Original ResearchSmall nuclear ribonucleoprotein particleSplice site recognitionU1 snRNASL RNASplice site regionSplicing substrateSpliced leader RNA sequencesVitro splicingSplice siteU1 snRNP functionsU1 small nuclear ribonucleoprotein particleEssential splicing factorLeader RNA sequencesNative gel analysisNuclear ribonucleoprotein particleSnRNP functionCaenorhabditis elegansSplicing complexesSplicing factorsLeptomonas collosomaSpliceosome assemblyDifferent intronsRibonucleoprotein particleU1 RNAMethyl oligoribonucleotideUncoupling two functions of the U1 small nuclear ribonucleoprotein particle during in vitro splicing.
Seiwert SD, Steitz JA. Uncoupling two functions of the U1 small nuclear ribonucleoprotein particle during in vitro splicing. Molecular And Cellular Biology 1993, 13: 3135-3145. PMID: 7684489, PMCID: PMC359749, DOI: 10.1128/mcb.13.6.3135.Peer-Reviewed Original ResearchMeSH KeywordsAdenoviridaeAnimalsBase SequenceCaenorhabditis elegansCell NucleusExonsHeLa CellsHumansMolecular Sequence DataNucleic Acid ConformationOligodeoxyribonucleotidesPlasmidsRibonucleoprotein, U1 Small NuclearRNARNA SplicingRNA, Small NuclearSequence Homology, Nucleic AcidTranscription, GeneticTrypanosomatinaConceptsSmall nuclear ribonucleoprotein particleU1 small nuclear ribonucleoprotein particleNuclear ribonucleoprotein particleSplice site recognitionU1 snRNASL RNASplice site regionSplicing substrateRibonucleoprotein particleSpliced leader RNA sequencesVitro splicingSplice siteU1 snRNP functionsEssential splicing factorLeader RNA sequencesNative gel analysisSnRNP functionCaenorhabditis elegansSplicing complexesSplicing factorsLeptomonas collosomaSpliceosome assemblyDifferent intronsU1 RNAMethyl oligoribonucleotide
1992
Site-specific cross-linking of mammalian U5 snRNP to the 5' splice site before the first step of pre-mRNA splicing.
Wyatt JR, Sontheimer EJ, Steitz JA. Site-specific cross-linking of mammalian U5 snRNP to the 5' splice site before the first step of pre-mRNA splicing. Genes & Development 1992, 6: 2542-2553. PMID: 1340469, DOI: 10.1101/gad.6.12b.2542.Peer-Reviewed Original ResearchConceptsSplice siteMRNA splicingATP-dependent interactionHeLa nuclear extractsU5 snRNPMRNA substratesSplice site regionProtein factorsU5 snRNANucleotides upstreamU6 snRNAPre-mRNANuclear extractsSplicingSite regionLoop sequenceCross-link formationSnRNASplicing conditionsWatson-Crick complementarityCross-linking strategyU1Selective photoactivationSnRNPMammalianInteractions of Small Nuclear RNA's with Precursor Messenger RNA During in Vitro Splicing
Wassarman D, Steitz J. Interactions of Small Nuclear RNA's with Precursor Messenger RNA During in Vitro Splicing. Science 1992, 257: 1918-1925. PMID: 1411506, DOI: 10.1126/science.1411506.Peer-Reviewed Original ResearchConceptsPrecursor messenger RNASmall nuclear RNANuclear RNASplice siteMessenger RNAPrecursor messenger RNA splicingU6 small nuclear RNAMessenger RNA splicingHeLa nuclear extractsExcised lariat intronSmall RNAsRNA splicingLariat intronIntron sequencesVitro splicingNuclear extractsCleavage eventsSplicingRNAU5Branch siteFirst cleavage eventU6U2U1
1990
Spliced leader RNA sequences can substitute for the essential 5′ end of U1 RNA during splicing in a mammalian in vitro system
Bruzik J, Steitz J. Spliced leader RNA sequences can substitute for the essential 5′ end of U1 RNA during splicing in a mammalian in vitro system. Cell 1990, 62: 889-899. PMID: 2168293, DOI: 10.1016/0092-8674(90)90264-f.Peer-Reviewed Original Research
1988
Trans splicing involves a novel form of small nuclear ribonucleoprotein particles
Bruzik J, Doren K, Hirsh D, Steitz J. Trans splicing involves a novel form of small nuclear ribonucleoprotein particles. Nature 1988, 335: 559-562. PMID: 2971142, DOI: 10.1038/335559a0.Peer-Reviewed Original ResearchConceptsSmall nuclear ribonucleoproteinSL RNACis splicingSplice siteNuclear ribonucleoproteinPrecursor-messenger RNA (pre-mRNA) transcriptsHeLa cell nuclear extractsSame nuclear compartmentTrans-splicing reactionCell nuclear extractsPossible secondary structuresMessenger RNA transcriptsSm snRNPSplice acceptor siteTrans splicingCellular machineryLeader transcriptNuclear compartmentNucleotide sequenceSplicing processRNA transcriptsNuclear extractsSnRNPSplicingSecondary structure
1987
Accurate 5' splice-site selection in mouse kappa immunoglobulin light chain premessenger RNAs is not cell-type-specific.
Kedes DH, Steitz JA. Accurate 5' splice-site selection in mouse kappa immunoglobulin light chain premessenger RNAs is not cell-type-specific. Proceedings Of The National Academy Of Sciences Of The United States Of America 1987, 84: 7928-7932. PMID: 3120179, PMCID: PMC299449, DOI: 10.1073/pnas.84.22.7928.Peer-Reviewed Original ResearchConceptsSplice site selectionSplice siteHeLa cellsLight chain transcriptsChain transcriptsV-J recombinationMouse kappa light chainsSplicing machineryPremessenger RNAConstant exonsGene sequencesKappa-producing cellsSynthetic transcriptsGene expressionNuclear extractsMouse B lymphocytesUpstream sitesTranscriptsExonsSequenceLight chainCellsPotential mechanismsSitesGenes
1983
The U1 small nuclear RNA-protein complex selectively binds a 5′ splice site in vitro
Mount S, Pettersson I, Hinterberger M, Karmas A, Steitz J. The U1 small nuclear RNA-protein complex selectively binds a 5′ splice site in vitro. Cell 1983, 33: 509-518. PMID: 6190573, DOI: 10.1016/0092-8674(83)90432-4.Peer-Reviewed Original ResearchConceptsRNA-protein complexesSplice siteU1 snRNPGlobin RNAPartial proteinase K digestionU1 snRNPsMouse beta-globin geneBacteriophage T7 RNA polymeraseEucaryotic cell nucleusMessenger RNA splicingT7 RNA polymeraseRecombinant DNA clonesBeta-globin geneT1 ribonuclease digestionSplice site sequencesSmall intronsSnRNP proteinsRNA splicingSnRNP complexDNA clonesRNA polymeraseSnRNPSite sequenceRibonuclease digestionProteinase K digestion