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 stoichiometry
2013
Phosphorylation of DGCR8 Increases Its Intracellular Stability and Induces a Progrowth miRNA Profile
Herbert KM, Pimienta G, DeGregorio SJ, Alexandrov A, Steitz JA. Phosphorylation of DGCR8 Increases Its Intracellular Stability and Induces a Progrowth miRNA Profile. Cell Reports 2013, 5: 1070-1081. PMID: 24239349, PMCID: PMC3892995, DOI: 10.1016/j.celrep.2013.10.017.Peer-Reviewed Original ResearchConceptsMicroprocessor complexRNA-binding proteinRNase III enzymeInhibition of phosphatasesStem-loop structureERK/MAPKSpecific processing activityMiRNA expression profilesExtracellular cuesMiRNA biogenesisDrosha proteinPhosphorylation sitesPrimary miRNAMammalian cellsProtein stabilityExpression profilesDGCR8Intracellular stabilityHeLa cellsCellular levelMiRNA profilesPhosphorylationMRNA levelsProteinCells
2004
A molecular link between SR protein dephosphorylation and mRNA export
Huang Y, Yario TA, Steitz JA. A molecular link between SR protein dephosphorylation and mRNA export. Proceedings Of The National Academy Of Sciences Of The United States Of America 2004, 101: 9666-9670. PMID: 15210956, PMCID: PMC470732, DOI: 10.1073/pnas.0403533101.Peer-Reviewed Original ResearchConceptsNuclear export factor 1Multiple RNA-binding proteinsMRNA-protein complexesSR protein dephosphorylationMRNA nuclear exportASF/SF2RNA-binding proteinMRNA exportProtein dephosphorylationProtein complexesProtein adaptersNuclear exportSpliced mRNAPhosphorylation stateMolecular linkFactor 1MRNAHigh affinityMetazoansDephosphorylationExportComplexesSerineAdapterProtein
2001
Protein ligands mediate the CRM1-dependent export of HuR in response to heat shock.
Gallouzi IE, Brennan CM, Steitz JA. Protein ligands mediate the CRM1-dependent export of HuR in response to heat shock. RNA 2001, 7: 1348-61. PMID: 11565755, PMCID: PMC1370177, DOI: 10.1017/s1355838201016089.Peer-Reviewed Original ResearchMeSH KeywordsActive Transport, Cell NucleusAntigens, SurfaceCarrier ProteinsCytoplasmELAV ProteinsELAV-Like Protein 1Fatty Acids, UnsaturatedHeat-Shock ResponseHeLa CellsHumansKaryopherinsLigandsNeuropeptidesNuclear ProteinsPhosphoproteinsReceptors, Cytoplasmic and NuclearRNA-Binding ProteinsRNA, MessengerConceptsAU-rich elementsNuclear exportHeat shockMessenger RNANuclear export factor CRM1Protein ligandsInhibitor of CRM1Export factor CRM1CRM1-dependent exportMRNA nuclear exportRNA-binding proteinProtein-protein interactionsRapid mRNA turnoverEarly response genesAssociation of HuRHeat shock inducesCytoplasmic fociHnRNP complexesExport pathwayMRNA turnoverLeptomycin BCoimmunoprecipitation experimentsCytoplasmic interactionsNES domainResponse genes
1998
HNS, a nuclear-cytoplasmic shuttling sequence in HuR
Fan X, Steitz J. HNS, a nuclear-cytoplasmic shuttling sequence in HuR. Proceedings Of The National Academy Of Sciences Of The United States Of America 1998, 95: 15293-15298. PMID: 9860962, PMCID: PMC28036, DOI: 10.1073/pnas.95.26.15293.Peer-Reviewed Original ResearchMeSH Keywords3T3 CellsAmino Acid SequenceAnimalsAntigens, SurfaceCell NucleusConserved SequenceCytoplasmELAV ProteinsELAV-Like Protein 1HeLa CellsHeterogeneous-Nuclear Ribonucleoprotein KHumansMiceMolecular Sequence DataRecombinant ProteinsRibonucleoproteinsRNA-Binding ProteinsRNA, MessengerSequence AlignmentSequence Homology, Amino AcidTransfectionXenopusConceptsHeterogeneous nuclear ribonucleoprotein KNuclear localization signal activityClassical nuclear localization signalAU-rich element-containing mRNAsExport of mRNAHeterogeneous nuclear ribonucleoprotein A1Nuclear export signalNuclear localization signalNuclear transport processRNA-binding proteinAU-rich elementsExport signalLocalization signalM9 sequenceNuclear poresDomain sequencesCytoplasmic compartmentUntranslated regionLabile mRNAsCell nucleiSpecific signalsHuRProteinBidirectional transportMRNA
1993
The Cellular RNA-Binding Protein EAP Recognizes a Conserved Stem-Loop in the Epstein-Barr Virus Small RNA EBER 1
Toczyski D, Steitz J. The Cellular RNA-Binding Protein EAP Recognizes a Conserved Stem-Loop in the Epstein-Barr Virus Small RNA EBER 1. Molecular And Cellular Biology 1993, 13: 703-710. DOI: 10.1128/mcb.13.1.703-710.1993.Peer-Reviewed Original ResearchSmall RNAsCellular RNA-binding proteinsConserved stem loopRNA-binding proteinDetailed mutational analysisStem-loop structureSequence-specific mannerRNase protection experimentsDouble-stranded regionsDeletion mutantsEBER-1Mutational analysisStem loopFusion proteinProtection experimentsViral proteinsRNAProteinEpstein-Barr virus small RNAsEpstein-Barr virusBindingMutantsHerpesvirus papioNucleotidesHairpinThe cellular RNA-binding protein EAP recognizes a conserved stem-loop in the Epstein-Barr virus small RNA EBER 1.
Toczyski DP, Steitz JA. The cellular RNA-binding protein EAP recognizes a conserved stem-loop in the Epstein-Barr virus small RNA EBER 1. Molecular And Cellular Biology 1993, 13: 703-710. PMID: 8380232, PMCID: PMC358948, DOI: 10.1128/mcb.13.1.703.Peer-Reviewed Original ResearchConceptsCellular RNA-binding proteinsRNA-binding proteinDetailed mutational analysisStem-loop structureSequence-specific mannerRNase protection experimentsEpstein‐Barr virus small RNA EBER‐1Double-stranded regionsSmall RNAsDeletion mutantsEBER-1Mutational analysisFusion proteinProtection experimentsViral proteinsProteinRNAEpstein-Barr virusBindingMutantsHerpesvirus papioNucleotidesHairpinAntibodiesCells