Search results for "Nucleocytoplasmic Transport Proteins"

showing 3 items of 3 documents

Proteins from rat liver cytosol which stimulate mRNA transport. Purification and interactions with the nuclear envelope mRNA translocation system.

1986

Two polysome-associated proteins with particular affinities for poly(A) have been purified from rat liver. These proteins stimulate the efflux of mRNA from isolated nuclei in conditions under which such efflux closely stimulates mRNA transport in vivo, and they are therefore considered as mRNA-transport-stimulatory proteins. Their interaction with the mRNA-translocation system in isolated nuclear envelopes has been studied. The results are generally consistent with the most recently proposed kinetic model of mRNA translocation. One protein, P58, has not been described previously. It inhibits the protein kinase that down-regulates the NTPase, it enhances the NTPase activity in both the prese…

MaleNucleocytoplasmic Transport ProteinsNuclear EnvelopeRNA-binding proteinBiologyBiochemistryCytosolPhosphoprotein PhosphatasesMRNA transportAnimalsRNA MessengerProtein kinase AMessenger RNANucleocytoplasmic Transport ProteinsRNARNA-Binding ProteinsBiological TransportRats Inbred StrainsNucleoside-TriphosphatasePhosphoric Monoester HydrolasesCell biologyRatsCytosolBiochemistryLiverPolyribosomesPhosphorylationCarrier ProteinsPoly AProtein KinasesEuropean journal of biochemistry
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Insights into mRNP biogenesis provided by new genetic interactions among export and transcription factors.

2012

Abstract Background The various steps of mRNP biogenesis (transcription, processing and export) are interconnected. It has been shown that the transcription machinery plays a pivotal role in mRNP assembly, since several mRNA export factors are recruited during transcription and physically interact with components of the transcription machinery. Although the shuttling DEAD-box protein Dbp5p is concentrated on the cytoplasmic fibrils of the NPC, previous studies demonstrated that it interacts physically and genetically with factors involved in transcription initiation. Results We investigated the effect of mutations affecting various components of the transcription initiation apparatus on the…

Nucleocytoplasmic Transport ProteinsSaccharomyces cerevisiae Proteinslcsh:QH426-470MutantActive Transport Cell NucleusRNA-binding proteinRNA polymerase IISaccharomyces cerevisiaeDEAD-box RNA HelicasesTranscription (biology)GeneticsGenetics(clinical)RNA MessengerNuclear poreMex67pTranscription factorGenetics (clinical)AllelesDbp5pGeneticsmRNA exportbiologyGeneral transcription factorfungiNuclear ProteinsRNA-Binding Proteinslcsh:GeneticsRibonucleoproteinsMutationbiology.proteinNuclear PoreRNA Polymerase IINuclear Pore ComplexTranscriptionBiogenesisTranscription FactorsResearch ArticleBMC genetics
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Sus1, a functional component of the SAGA histone acetylase complex and the nuclear pore-associated mRNA export machinery

2004

12 páginas, 7 figuras, 1 tabla. Material suplementario en: https://doi.org/10.1016/S0092-8674(03)01025-0. The SUS1 sequences have been deposited in GenBank with the accession number AY278445.

Transcriptional ActivationNucleocytoplasmic Transport ProteinsDNA ComplementarySaccharomyces cerevisiae ProteinsMolecular Sequence DataActive Transport Cell NucleusPorinsRNA polymerase IIBiologyGeneral Biochemistry Genetics and Molecular BiologyFungal ProteinsTranscription (biology)AcetyltransferasesGene Expression Regulation FungalYeastsGene expressionGenes RegulatorTranscriptional regulationAmino Acid SequenceRNA MessengerNuclear proteinPromoter Regions GeneticHistone AcetyltransferasesRegulation of gene expressionCell NucleusBase SequenceBiochemistry Genetics and Molecular Biology(all)Nuclear ProteinsRNA-Binding ProteinsMolecular biologyCell biologySAGA complexRibonucleoproteinsbiology.proteinNuclear PoreGenes LethalChromatin immunoprecipitation
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