Cited by 263RNA Research and SplicingRNA regulation and diseaseRNA and protein synthesis mechanisms

Position-dependent alternative splicing activity revealed by global profiling of alternative splicing events regulated by PTB

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Llorian, Miriam, Schwartz, Schraga, Clark, Tyson A, Hollander, Dror, Tan, Lit-Yeen, Spellman, Rachel, Gordon, Adele, Schweitzer, Anthony C +3 more·2010·Nature Structural & Molecular Biology

Abstract

To gain global insights into the role of the well-known repressive splicing regulator PTB, we analyzed the consequences of PTB knockdown in HeLa cells using high-density oligonucleotide splice-sensitive microarrays. The major class of identified PTB-regulated splicing event was PTB-repressed cassette exons, but there was also a substantial number of PTB-activated splicing events. PTB-repressed and PTB-activated exons showed a distinct arrangement of motifs with pyrimidine-rich motif enrichment within and upstream of repressed exons but downstream of activated exons. The N-terminal half of PTB was sufficient to activate splicing when recruited downstream of a PTB-activated exon. Moreover, insertion of an upstream pyrimidine tract was sufficient to convert a PTB-activated exon to a PTB-repressed exon. Our results show that PTB, an archetypal splicing repressor, has variable splicing activity that predictably depends upon its binding location with respect to target exons.

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  1. [17]Gooding C Roberts GC Smith CW Role of an inhibitory pyrimidine element and polypyrimidine tract binding protein in repression of a regulated alpha-tropomyosin exon Rna 1998 4 85 100 9436911 PMC1369599

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Authors
Llorian, M., Schwartz, S., Clark, T. A., Hollander, D., Tan, L.-Y., Spellman, R., Gordon, A., Schweitzer, A. C., de la Grange, P., Ast, G., & Smith, C. W. J.
Affiliations
  • University of Cambridge (GB)
  • Tel Aviv University (IL)
  • Affymetrix (United States) (US)
  • Institute of Cancer Research (GB)
Corresponding author
Smith, Christopher W J
Venue
Nature Structural & Molecular Biology
Published
2010-08-15
Volume
17
Issue
9
Pages
1114-1123
ISSN
  • 1545-9985 (ISSN-L)
  • 1545-9993
OpenAlex
W2042086006
Cited by
263
References
69
Citations by year
2026: 9 · 2025: 13 · 2024: 15 · 2023: 22 · 2022: 9 · 2021: 15 · 2020: 12 · 2019: 8 · 2018: 17 · 2017: 15 · 2016: 17 · 2015: 19 · 2014: 21 · 2013: 22 · 2012: 28
FWCI
9.11
Type
journal article
Language
en
Open access
Locations
  • Nature Structural & Molecular Biology (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
Wellcome Trust (077877)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA Research and Splicing
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA regulation and disease
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA and protein synthesis mechanisms
Keywords
polypyrimidine tract-binding protein, PTB, alternative splicing, splicing regulation, cassette exons, HeLa cells
MeSH terms
Base Sequence, Exons, HeLa Cells, Humans, Introns, Molecular Sequence Data, Alternative Splicing, Oligonucleotide Array Sequence Analysis, Silencer Elements, Transcriptional, Polypyrimidine Tract-Binding Protein

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