The architecture of the spliceosomal U4/U6.U5 tri-snRNP [PDF]
Nature, 2015 U4/U6.U5 tri-snRNP is a 1.5-megadalton pre-assembled spliceosomal complex comprising U5 small nuclear RNA (snRNA), extensively base-paired U4/U6 snRNAs and more than 30 proteins, including the key components Prp8, Brr2 and Snu114. The tri-snRNP combines with a precursor messenger RNA substrate bound to U1 and U2 small nuclear ribonucleoprotein ...
Nguyen, Thi Hoang Duong +6 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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PRP4: a protein of the yeast U4/U6 small nuclear ribonucleoprotein particle [PDF]
, 1989 The Saccharomyces cerevisiae prp mutants (prp2 through prp11) are known to be defective in pre-mRNA splicing at nonpermissive temperatures. We have sequenced the PRP4 gene and shown that it encodes a 52-kilodalton protein.
Abelson, John N., Banroques, Josette
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New insights into trypanosomatid U5 small nuclear ribonucleoproteins
Memorias do Instituto Oswaldo Cruz, 2011 Several protozoan parasites exist in the Trypanosomatidae family, including various agents of human diseases. Multiple lines of evidence suggest that important differences are present between the translational and mRNA processing (trans splicing) systems
Marco Túlio A da Silva +8 more
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The recruitment of the U5 snRNP to nascent transcripts requires internal loop 1 of U5 snRNA [PDF]
Chromosome Research, 2012 In this study, we take advantage of the high spatial resolution offered by the nucleus and lampbrush chromosomes of the amphibian oocyte to investigate the mechanisms that regulate the intranuclear trafficking of the U5 snRNP and its recruitment to nascent transcripts.
Rebecca, Kim +3 more
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A sart1 Zebrafish Mutant Results in Developmental Defects in the Central Nervous System
Cells, 2020 The spliceosome consists of accessory proteins and small nuclear ribonucleoproteins (snRNPs) that remove introns from RNA. As splicing defects are associated with degenerative conditions, a better understanding of spliceosome formation and function is ...
Hannah E. Henson, Michael R. Taylor
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Breaking up the C complex spliceosome shows stable association of proteins with the lariat intron intermediate. [PDF]
PLoS ONE, 2011 Spliceosome assembly requires several structural rearrangements to position the components of the catalytic core. Many of these rearrangements involve successive strengthening and weakening of different RNA:RNA and RNA:proteins interactions within the ...
Patricia Coltri +4 more
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Interaction of yeast eIF4G with spliceosome components Implications in pre-mRNA processing events [PDF]
, 2009 International audienceAs evidenced from mammalian cells the eukaryotic translation initiation factor eIF4G has a putative role in nuclear RNA metabolism. Here we investigate whether this role is conserved in the yeast Saccharomyces cerevisiae.
Barrass, J. David +6 more
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Evidence for a nuclear compartment of transcription and splicing located at chromosome domain boundaries [PDF]
, 1993 The nuclear topography of splicing snRNPs, mRNA transcripts and chromosome domains in various mammalian cell types are described. The visualization of splicing snRNPs, defined by the Sm antigen, and coiled bodies, revealed distinctly different ...
A Monneron +64 more
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