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dc.contributor.authorBraun, Joerg E.
dc.contributor.authorFriedman, Larry J.
dc.contributor.authorGelles, Jeff
dc.contributor.authorMoore, Melissa J.
dc.date2022-08-11T08:10:52.000
dc.date.accessioned2022-08-23T17:22:49Z
dc.date.available2022-08-23T17:22:49Z
dc.date.issued2018-06-23
dc.date.submitted2018-07-20
dc.identifier.citation<p>Elife. 2018 Jun 22;7. pii: 37751. doi: 10.7554/eLife.37751. <a href="https://doi.org/10.7554/eLife.37751">Link to article on publisher's site</a></p>
dc.identifier.issn2050-084X (Linking)
dc.identifier.doi10.7554/eLife.37751
dc.identifier.pmid29932423
dc.identifier.urihttp://hdl.handle.net/20.500.14038/48825
dc.description.abstractMost 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 together is unclear. We examined in human nuclear extracts dynamic interactions of single pre-mRNA molecules with individual fluorescently tagged spliceosomal subcomplexes to investigate how cross-intron and cross-exon processes jointly promote pre-spliceosome assembly. U1 subcomplex bound to the 5' splice site of an intron acts jointly with U1 bound to the 5' splice site of the next intron to dramatically increase the rate and efficiency by which U2 subcomplex is recruited to the branch site/3' splice site of the upstream intron. The flanking 5' splice sites have greater than additive effects implying distinct mechanisms facilitating U2 recruitment. This synergy of 5' splice sites across introns and exons is likely important in promoting correct and efficient splicing of multi-intron pre-mRNAs.
dc.language.isoen_US
dc.relation<p><a href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=pubmed&cmd=Retrieve&list_uids=29932423&dopt=Abstract">Link to Article in PubMed</a></p>
dc.rights© 2018, Braun et al. This article is distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use and redistribution provided that the original author and source are credited.
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectCoSMoS
dc.subjectRNA
dc.subjectbiochemistry
dc.subjectchemical biology
dc.subjecthuman
dc.subjectmolecular biophysics
dc.subjectsingle-molecule
dc.subjectsnRNP spliceosome
dc.subjectsplicing
dc.subjectstructural biology
dc.subjectBiochemistry
dc.subjectBiophysics
dc.subjectMolecular Biology
dc.subjectStructural Biology
dc.titleSynergistic assembly of human pre-spliceosomes across introns and exons
dc.typeJournal Article
dc.source.journaltitleeLife
dc.source.volume7
dc.identifier.legacyfulltexthttps://escholarship.umassmed.edu/cgi/viewcontent.cgi?article=1034&amp;context=rti_pubs&amp;unstamped=1
dc.identifier.legacycoverpagehttps://escholarship.umassmed.edu/rti_pubs/35
dc.identifier.contextkey12515841
refterms.dateFOA2022-08-23T17:22:49Z
html.description.abstract<p>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 together is unclear. We examined in human nuclear extracts dynamic interactions of single pre-mRNA molecules with individual fluorescently tagged spliceosomal subcomplexes to investigate how cross-intron and cross-exon processes jointly promote pre-spliceosome assembly. U1 subcomplex bound to the 5' splice site of an intron acts jointly with U1 bound to the 5' splice site of the next intron to dramatically increase the rate and efficiency by which U2 subcomplex is recruited to the branch site/3' splice site of the upstream intron. The flanking 5' splice sites have greater than additive effects implying distinct mechanisms facilitating U2 recruitment. This synergy of 5' splice sites across introns and exons is likely important in promoting correct and efficient splicing of multi-intron pre-mRNAs.</p>
dc.identifier.submissionpathrti_pubs/35
dc.contributor.departmentRNA Therapeutics Institute
dc.source.pagese37751


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© 2018, Braun et al. This article is distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use and redistribution provided that the original author and source are credited.
Except where otherwise noted, this item's license is described as © 2018, Braun et al. This article is distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use and redistribution provided that the original author and source are credited.