Modulating alternative splicing by cotranscriptional cleavage of nascent intronic RNA.

Cotranscriptional cleavage mediated by a hammerhead ribozyme can affect alternative splicing if interposed between an exon and its intronic regulatory elements. This has been demonstrated using two different alternative splicing systems based on alpha-tropomyosin and fibronectin genes. We suggest th...

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Main Authors: Gromak, N, Talotti, G, Proudfoot, N, Pagani, F
Format: Journal article
Language:English
Published: 2008
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author Gromak, N
Talotti, G
Proudfoot, N
Pagani, F
author_facet Gromak, N
Talotti, G
Proudfoot, N
Pagani, F
author_sort Gromak, N
collection OXFORD
description Cotranscriptional cleavage mediated by a hammerhead ribozyme can affect alternative splicing if interposed between an exon and its intronic regulatory elements. This has been demonstrated using two different alternative splicing systems based on alpha-tropomyosin and fibronectin genes. We suggest that there is a requirement for intronic regulatory elements to be covalently attached to exons that are in turn tethered to the elongating polymerase. In the case of the alternatively spliced EDA exon of the fibronectin gene, we demonstrate that the newly identified intronic downstream regulatory element is associated with the splicing regulatory protein SRp20. Our results suggest that targeted hammerhead ribozyme cleavage within introns can be used as a tool to define splicing regulatory elements.
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spelling oxford-uuid:dbc9ed9b-faba-40d3-b44f-467a2ccb007c2022-03-27T09:13:06ZModulating alternative splicing by cotranscriptional cleavage of nascent intronic RNA.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:dbc9ed9b-faba-40d3-b44f-467a2ccb007cEnglishSymplectic Elements at Oxford2008Gromak, NTalotti, GProudfoot, NPagani, FCotranscriptional cleavage mediated by a hammerhead ribozyme can affect alternative splicing if interposed between an exon and its intronic regulatory elements. This has been demonstrated using two different alternative splicing systems based on alpha-tropomyosin and fibronectin genes. We suggest that there is a requirement for intronic regulatory elements to be covalently attached to exons that are in turn tethered to the elongating polymerase. In the case of the alternatively spliced EDA exon of the fibronectin gene, we demonstrate that the newly identified intronic downstream regulatory element is associated with the splicing regulatory protein SRp20. Our results suggest that targeted hammerhead ribozyme cleavage within introns can be used as a tool to define splicing regulatory elements.
spellingShingle Gromak, N
Talotti, G
Proudfoot, N
Pagani, F
Modulating alternative splicing by cotranscriptional cleavage of nascent intronic RNA.
title Modulating alternative splicing by cotranscriptional cleavage of nascent intronic RNA.
title_full Modulating alternative splicing by cotranscriptional cleavage of nascent intronic RNA.
title_fullStr Modulating alternative splicing by cotranscriptional cleavage of nascent intronic RNA.
title_full_unstemmed Modulating alternative splicing by cotranscriptional cleavage of nascent intronic RNA.
title_short Modulating alternative splicing by cotranscriptional cleavage of nascent intronic RNA.
title_sort modulating alternative splicing by cotranscriptional cleavage of nascent intronic rna
work_keys_str_mv AT gromakn modulatingalternativesplicingbycotranscriptionalcleavageofnascentintronicrna
AT talottig modulatingalternativesplicingbycotranscriptionalcleavageofnascentintronicrna
AT proudfootn modulatingalternativesplicingbycotranscriptionalcleavageofnascentintronicrna
AT paganif modulatingalternativesplicingbycotranscriptionalcleavageofnascentintronicrna