Results 11 to 20 of about 49,310 (235)
Spliceosomal snRNA Epitranscriptomics [PDF]
Frontiers in Genetics, 2021 Small nuclear RNAs (snRNAs) are critical components of the spliceosome that catalyze the splicing of pre-mRNA. snRNAs are each complexed with many proteins to form RNA-protein complexes, termed as small nuclear ribonucleoproteins (snRNPs), in the cell nucleus. snRNPs participate in pre-mRNA splicing by recognizing the critical sequence elements present
Pedro Morais, Hironori Adachi, Yi-Tao Yu
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Spliceosomal immunophilins [PDF]
FEBS Letters, 2008 The spliceosome is a dynamic, macromolecular complex, which removes non‐protein‐coding introns from pre‐mRNA to form mature mRNA in a process known as splicing. This ribonucleoprotein assembly is comprised of five uridine‐rich small nuclear RNAs (snRNAs) as well as over 300 proteins.
Mesa, Annia +2 more
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Spliceosomal intronogenesis [PDF]
Proceedings of the National Academy of Sciences, 2016 Significance Eukaryotic transcripts contain spliceosomal introns that need to be removed by pre-mRNA splicing. Although several models have been proposed to identify the mechanism of intron gain over the evolution of eukaryotes, they remain models due to a lack of experimental validation.
Sujin, Lee, Scott W, Stevens
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Viruses, 2022 The spliceosome is a massive ribonucleoprotein structure composed of five small nuclear ribonucleoprotein (snRNP) complexes that catalyze the removal of introns from pre-mature RNA during constitutive and alternative splicing. EFTUD2, PRPF8, and SNRNP200
Simon Boudreault +2 more
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Cell Reports, 2022 Summary: The spliceosome is a large ribonucleoprotein complex responsible for pre-mRNA splicing and genome stability maintenance. Disruption of the spliceosome activity may lead to developmental disorders and tumorigenesis.
Gui-Xin Ruan +8 more
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USP15 regulates dynamic protein-protein interactions of the spliceosome through deubiquitination of PRP31. [PDF]
, 2017 Post-translational modifications contribute to the spliceosome dynamics by facilitating the physical rearrangements of the spliceosome. Here, we report USP15, a deubiquitinating enzyme, as a regulator of protein-protein interactions for the spliceosome ...
Das, Tanuza +6 more
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Human spliceosomal snRNA sequence variants generate variant spliceosomes
RNA, 2021 Human pre-mRNA splicing is primarily catalyzed by the major spliceosome, comprising five small nuclear ribonucleoprotein complexes, U1, U2, U4, U5, and U6 snRNPs, each of which contains the corresponding U-rich snRNA. These snRNAs are encoded by large gene families exhibiting significant sequence variation, but it remains unknown if most human snRNA ...
Justin W. Mabin +3 more
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SF3b4: A Versatile Player in Eukaryotic Cells
Frontiers in Cell and Developmental Biology, 2020 Spliceosomes are large protein-RNA complexes regulating pre-mRNA processing in eukaryotes. SF3b4 encodes a core subunit of the U2-type spliceosome, loss- or gain-of-function of which often associates with abnormal cell growth, leading to tumorigenesis ...
Feng Xiong, Sha Li, Sha Li
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Crystals, 2021 Cryo-electron microscopy has greatly advanced our understanding of how the spliceosome cycles through different conformational states to conduct the chemical reactions that remove introns from pre-mRNA transcripts.
Adelaine Kwun-Wai Leung +5 more
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evolution, structure and function of metazoan splicing factor PRPF39 [PDF]
, 2019 In the yeast U1 snRNP the Prp39/Prp42 heterodimer is essential for early steps of spliceosome assembly. In metazoans no Prp42 ortholog exists, raising the question how the heterodimer is functionally substituted.
Bortoli, Francesca De +7 more
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