Results 1 to 10 of about 17,120 (319)
Spliceosome assembly and regulation: insights from analysis of highly reduced spliceosomes. [PDF]
RNA, 2023 Premessenger RNA splicing is catalyzed by the spliceosome, a multimegadalton RNA–protein complex that assembles in a highly regulated process on each intronic substrate.
Black CS +5 more
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The 35S U5 snRNP Is Generated from the Activated Spliceosome during In vitro Splicing. [PDF]
PLoS ONE, 2015 Primary gene transcripts of eukaryotes contain introns, which are removed during processing by splicing machinery. Biochemical studies In vitro have identified a specific pathway in which introns are recognised and spliced out. This occurs by progressive
Olga V Makarova, Evgeny M Makarov
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Frontiers in Genetics, 2021 Many eukaryotic species contain two separate molecular machineries for removing non-coding intron sequences from pre-mRNA molecules. The majority of introns (more than 99.5% in humans) are recognized and excised by the major spliceosome, which utilizes ...
Maureen V. Akinyi, Mikko J. Frilander
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eLife, 2016 The DEAH-box NTPase Prp43 and its cofactors Ntr1 and Ntr2 form the NTR complex and are required for disassembling intron-lariat spliceosomes (ILS) and defective earlier spliceosomes.
Jean-Baptiste Fourmann +7 more
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Nature Communications, 2020 Spinal muscular atrophy (SMA) is associated with minor splicing-related defects. Here the authors develop Drosophila models with minor spliceosomal-snRNA deletions, and demonstrate SMA-like phenotypes.
Liang Li +9 more
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Surprisingly high number of Twintrons in vertebrates [PDF]
Biology Direct, 2013 Twintrons represent a special intronic arrangement in which introns of two different types occupy the same gene position. Consequently, alternative splicing of these introns requires two different spliceosomes competing for the same RNA molecule. So far,
Janice Jessin +2 more
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Nuclear Pre-snRNA Export Is an Essential Quality Assurance Mechanism for Functional Spliceosomes
Cell Reports, 2019 Summary: Removal of introns from pre-mRNAs is an essential step in eukaryotic gene expression, mediated by spliceosomes that contain snRNAs as key components. Although snRNAs are transcribed in the nucleus and function in the same compartment, all except
Daniel Becker +5 more
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Synergistic assembly of human pre-spliceosomes across introns and exons
eLife, 2018 Most human genes contain multiple introns, necessitating mechanisms to effectively define exons and ensure their proper connection by spliceosomes. Human spliceosome assembly involves both cross-intron and cross-exon interactions, but how these work ...
Joerg E Braun +3 more
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Regulation of Prp43-mediated disassembly of spliceosomes by its cofactors Ntr1 and Ntr2
Nucleic Acids Research, 2016 The DEAH-box NTPase Prp43 disassembles spliceosomes in co-operation with the cofactors Ntr1/Spp382 and Ntr2, forming the NTR complex. How Prp43 is regulated by its cofactors to discard selectively only intron-lariat spliceosomes (ILS) and defective ...
J. Fourmann +4 more
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PRPF8-mediated dysregulation of hBrr2 helicase disrupts human spliceosome kinetics and 5´-splice-site selection causing tissue-specific defects [PDF]
Nature CommunicationsThe carboxy-terminus of the spliceosomal protein PRPF8, which regulates the RNA helicase Brr2, is a hotspot for mutations causing retinitis pigmentosa-type 13, with unclear role in human splicing and tissue-specificity mechanism.
Robert Atkinson +31 more
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