Evidence map›Paper›PMID 25737549›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2015

Systematic discovery of regulated and conserved alternative exons in the mammalian brain reveals NMD modulating chromatin regulators.

Qinghong Yan, Sebastien M Weyn-Vanhentenryck, Jie Wu, Steven A Sloan, Ye Zhang, Kenian Chen, Jia Qian Wu, Ben A Barres, Chaolin Zhang

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 120 papers.

0numbers the graph read from it
0cells of the map it votes in
120citing papers in PubMed
7.2field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

120 citing papers in PubMed, 181 citations in OpenAlex.

  1. Article
  2. Article
  3. TDP-43: [GU]-ardian of the transcriptome.Molecular neurodegeneration · 2026
    Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. A neuron type-specific microexon inbioRxiv : the preprint server for biology · 2025
    Article
  11. Science advances · 2025
    Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Isoform switch of T-cell factor7L2 during mouse heart development.Journal of molecular and cellular cardiology plus · 2025
    Article
  17. Article
  18. Article
  19. Article
  20. Article

60 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 3 institutions in 1 country.

Qinghong YanDepartment of Systems Biology, Department of Biochemistry and Molecular Biophysics, Center for Motor Neuron Biology and Disease, Columbia University, New York, NY 10032;
Sebastien M Weyn-VanhentenryckDepartment of Systems Biology, Department of Biochemistry and Molecular Biophysics, Center for Motor Neuron Biology and Disease, Columbia University, New York, NY 10032;
Jie WuDepartment of Systems Biology, Department of Biochemistry and Molecular Biophysics, Center for Motor Neuron Biology and Disease, Columbia University, New York, NY 10032;
Steven A SloanDepartment of Neurobiology, Stanford University School of Medicine, Stanford, CA 94305;
Ye ZhangDepartment of Neurobiology, Stanford University School of Medicine, Stanford, CA 94305;
Kenian ChenThe Vivian L. Smith Department of Neurosurgery, University of Texas Medical School at Houston, Houston, TX 77057; and Center for Stem Cell and Regenerative Medicine, University of Texas Brown Institute of Molecular Medicine, Houston, TX 77057.
Jia Qian WuThe Vivian L. Smith Department of Neurosurgery, University of Texas Medical School at Houston, Houston, TX 77057; and Center for Stem Cell and Regenerative Medicine, University of Texas Brown Institute of Molecular Medicine, Houston, TX 77057.
Ben A BarresDepartment of Neurobiology, Stanford University School of Medicine, Stanford, CA 94305; cz2294@columbia.edu barres@stanford.edu.
Chaolin ZhangDepartment of Systems Biology, Department of Biochemistry and Molecular Biophysics, Center for Motor Neuron Biology and Disease, Columbia University, New York, NY 10032; cz2294@columbia.edu barres@stanford.edu.
Brown Foundation · USColumbia University · USStanford University · US

Funding

MEDICAL SCIENTIST TRAINING PROGRAMT32GM007365 · NIGMS · STANFORD UNIVERSITY · PI CHUA, KATRIN F · 1985 to 2021
$33.8M
Training Program in Basic NeuroscienceT32MH020016 · NIMH · STANFORD UNIVERSITY · PI Justin L Gardner, Merritt C Maduke · 1997 to 2026
$16.2M
Identifying Novel Molecular Targets for Chronic SCIR01NS088353 · NINDS · UNIVERSITY OF TEXAS HLTH SCI CTR HOUSTON · PI JIaqian Wu-Huber · 2015 to 2026
$4.0M
RNA regulatory networks in motor neuron development and functionR01NS089676 · NINDS · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI ZHANG, CHAOLIN · 2015 to 2019
$1.8M
An integrative genomic strategy to infer global RNA regulatory networksR00GM095713 · NIGMS · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI ZHANG, CHAOLIN · 2013 to 2015
$747k
Identification of transcription factors that regulate astrocyte differentiationR00NS089780 · NINDS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI ZHANG, YE · 2017 to 2019
$745k
Integrated Analysis of Hematopoietic Precursor Self-renewal and DifferentiationR00HL093213 · NHLBI · UNIVERSITY OF TEXAS HLTH SCI CTR HOUSTON · PI WU-HUBER, JIAQIAN · 2011 to 2013
$717k
Identification of transcription factors that regulate astrocyte differentiationK99NS089780 · NINDS · STANFORD UNIVERSITY · PI ZHANG, YE · 2014 to 2015
$178k
NHLBI NIH HHS R00 HL093213NIGMS NIH HHS R00 GM095713NIGMS NIH HHS R00GM95713NIGMS NIH HHS T32 GM007365NIGMS NIH HHS T32GM007365NIMH NIH HHS R01MH09955501NIMH NIH HHS T32 MH020016NINDS NIH HHS K99 NS089780NINDS NIH HHS R00 NS089780NINDS NIH HHS R01NS08170301NINDS NIH HHS R01 NS088353NINDS NIH HHS R01 NS089676
6 · The paper itself

Abstract

Alternative splicing (AS) dramatically expands the complexity of the mammalian brain transcriptome, but its atlas remains incomplete. Here we performed deep mRNA sequencing of mouse cortex to discover and characterize alternative exons with potential functional significance. Our analysis expands the list of AS events over 10-fold compared with previous annotations, demonstrating that 72% of multiexon genes express multiple splice variants in this single tissue. To evaluate functionality of the newly discovered AS events, we conducted comprehensive analyses on central nervous system (CNS) cell type-specific splicing, targets of tissue- or cell type-specific RNA binding proteins (RBPs), evolutionary selection pressure, and coupling of AS with nonsense-mediated decay (AS-NMD). We show that newly discovered events account for 23-42% of all cassette exons under tissue- or cell type-specific regulation. Furthermore, over 7,000 cassette exons are under evolutionary selection for regulated AS in mammals, 70% of which are new. Among these are 3,058 highly conserved cassette exons, including 1,014 NMD exons that may function directly to control gene expression levels. These NMD exons are particularly enriched in RBPs including splicing factors and interestingly also regulators for other steps of RNA metabolism. Unexpectedly, a second group of NMD exons reside in genes encoding chromatin regulators. Although the conservation of NMD exons in RBPs frequently extends into lower vertebrates, NMD exons in chromatin regulators are introduced later into the mammalian lineage, implying the emergence of a novel mechanism coupling AS and epigenetics. Our results highlight previously uncharacterized complexity and evolution in the mammalian brain transcriptome.

Indexed as

Alternative SplicingAnimalsBase SequenceBrainCerebral CortexChromatinConserved SequenceEvolution, MolecularExonsHigh-Throughput Nucleotide SequencingHumansMaleMammalsMice, Inbred C57BLMolecular Sequence DataNonsense Mediated mRNA DecayChromatinbrain transcriptomechromatin regulatornew alternative exonnonsense-mediated decayRNA-Seq

Identifiers

PMID25737549
PMCPMC4371929
OpenAlexW1975473978

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.