Cited by 82RNA Research and SplicingRNA regulation and diseaseGenetics and Neurodevelopmental Disorders

The Tissue-Specific RNA Binding Protein T-STAR Controls Regional Splicing Patterns of Neurexin Pre-mRNAs in the Brain

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Ehrmann, Ingrid, Dalgliesh, Caroline, Liu, Yilei, Danilenko, Marina, Crosier, Moira, Overman, Lynn, Arthur, Helen M., Lindsay, Susan +4 more·2013·PLoS Genetics

Abstract

The RNA binding protein T-STAR was created following a gene triplication 520-610 million years ago, which also produced its two parologs Sam68 and SLM-1. Here we have created a T-STAR null mouse to identify the endogenous functions of this RNA binding protein. Mice null for T-STAR developed normally and were fertile, surprisingly, given the high expression of T-STAR in the testis and the brain, and the known infertility and pleiotropic defects of Sam68 null mice. Using a transcriptome-wide search for splicing targets in the adult brain, we identified T-STAR protein as a potent splicing repressor of the alternatively spliced segment 4 (AS4) exons from each of the Neurexin1-3 genes, and exon 23 of the Stxbp5l gene. T-STAR protein was most highly concentrated in forebrain-derived structures like the hippocampus, which also showed maximal Neurexin1-3 AS4 splicing repression. In the absence of endogenous T-STAR protein, Nrxn1-3 AS4 splicing repression dramatically decreased, despite physiological co-expression of Sam68. In transfected cells Neurexin3 AS4 alternative splicing was regulated by either T-STAR or Sam68 proteins. In contrast, Neurexin2 AS4 splicing was only regulated by T-STAR, through a UWAA-rich response element immediately downstream of the regulated exon conserved since the radiation of bony vertebrates. The AS4 exons in the Nrxn1 and Nrxn3 genes were also associated with distinct patterns of conserved UWAA repeats. Consistent with an ancient mechanism of splicing control, human T-STAR protein was able to repress splicing inclusion of the zebrafish Nrxn3 AS4 exon. Although Neurexin1-3 and Stxbp5l encode critical synaptic proteins, T-STAR null mice had no detectable spatial memory deficits, despite an almost complete absence of AS4 splicing repression in the hippocampus. Our work identifies T-STAR as an ancient and potent tissue-specific splicing regulator that uses a concentration-dependent mechanism to co-ordinately regulate regional splicing patterns of the Neurexin1-3 AS4 exons in the mouse brain.

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Crossref · 10.1371/journal.pgen.1003474

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  • Slm1 and Slm2 single-null mice are viable with no apparent behavioural or anatomical defects.

    “Slm1 and Slm2 single-null mice are viable with no apparent behavioural or anatomical defects84,87,98.”

    From The neurogenetics of alternative splicing (2016) · cites this paper as [98]

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Authors
Ehrmann, I., Dalgliesh, C., Liu, Y., Danilenko, M., Crosier, M., Overman, L., Arthur, H. M., Lindsay, S., Clowry, G. J., Venables, J. P., Fort, P., & Elliott, D. J.
Affiliations
  • Newcastle University (GB)
  • Centre National de la Recherche Scientifique (FR)
Corresponding author
Elliott, David J.
Venue
PLoS Genetics
Published
2013-04-25
Volume
9
Issue
4
Pages
e1003474
ISSN
  • 1553-7390 (ISSN-L)
  • 1553-7404
OpenAlex
W2070478243
Cited by
82
References
68
Citations by year
2026: 1 · 2025: 5 · 2024: 3 · 2023: 5 · 2022: 3 · 2021: 8 · 2020: 6 · 2019: 5 · 2018: 4 · 2017: 2 · 2016: 16 · 2015: 9 · 2014: 10 · 2013: 5
FWCI
5.98
Type
journal article
Language
en
Open access
Locations
  • PLoS Genetics (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • HAL (submittedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Figshare (submittedVersion, cc-by)
Funders
  • Wellcome Trust (WT080368MA, WT089225/Z/09/Z)
  • British Heart Foundation (RG/12/2/29416)
  • Medical Research Council (MC_PC_15004)
  • Biotechnology and Biological Sciences Research Council (BB/D013917/1, BB/I006923/1, WT089225/Z/09/Z, WT080368MA, BB/K018957/1)
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 › Genetics › Genetics and Neurodevelopmental Disorders
Keywords
RNA-binding proteins, alternative splicing, neurexin, Sam68, gene triplication, splicing repressor, hippocampus, spatial memory, synaptic proteins
MeSH terms
Animals, Brain, Exons, Humans, RNA Precursors, RNA Splicing, RNA-Binding Proteins, Alternative Splicing

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