Evidence map›Paper›PMID 22802532›Full record

ArticleGenes & development2012

Ptbp2 represses adult-specific splicing to regulate the generation of neuronal precursors in the embryonic brain.

Donny D Licatalosi, Masato Yano, John J Fak, Aldo Mele, Sarah E Grabinski, Chaolin Zhang, Robert B Darnell

Open access · diamondAbstract read
In one paragraph

Article in Genes & development, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 142 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
142citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

142 citing papers in PubMed, 1 synthesis or guideline pooled it, 203 citations in OpenAlex.

  1. Pooled it
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  6. Dynamic changes in mRNA isoform usage during human retinal development.bioRxiv : the preprint server for biology · 2025
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  7. The Role of mRNA Alternative Processing in Mammalian Neurodevelopment.International journal of molecular sciences · 2025
    Review
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82 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

7 authors at 4 institutions in 2 countries.

Donny D LicatalosiLaboratory of Molecular Neuro-Oncology, The Rockefeller University, New York, New York 10065, USA.
Masato Yano
John J Fak
Aldo Mele
Sarah E Grabinski
Chaolin Zhang
Robert B Darnell
Rockefeller University · USCase Western Reserve University · USHoward Hughes Medical Institute · USKeio University · JP

Funding

NEUROLOGY AND THE MOLECULAR ROLE OF N-RBPS IN THE BRAINR01NS034389 · NINDS · ROCKEFELLER UNIVERSITY · PI DARNELL, ROBERT B · 1995 to 2016
$6.3M
Structure/function studies of RBPs in neurologic diseaseR01NS040955 · NINDS · ROCKEFELLER UNIVERSITY · PI DARNELL, ROBERT B · 2001 to 2005
$3.3M
An integrative genomic strategy to infer global RNA regulatory networksR00GM095713 · NIGMS · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI ZHANG, CHAOLIN · 2013 to 2015
$747k
Neurology and the molecular role of N-RBPs in the brainR56NS034389 · NINDS · ROCKEFELLER UNIVERSITY · PI DARNELL, ROBERT B · 2012 to 2012
$590k
An integrative genomic strategy to infer global RNA regulatory networksK99GM095713 · NIGMS · ROCKEFELLER UNIVERSITY · PI ZHANG, CHAOLIN · 2011 to 2012
$180k
Howard Hughes Medical InstituteNIGMS NIH HHS K99 GM095713NIGMS NIH HHS K99GM95713NIGMS NIH HHS R00 GM095713NINDS NIH HHS NS34389NINDS NIH HHS NS40955NINDS NIH HHS R01 NS034389NINDS NIH HHS R01 NS040955NINDS NIH HHS R56 NS034389
6 · The paper itself

Abstract

Two polypyrimidine tract RNA-binding proteins (PTBs), one near-ubiquitously expressed (Ptbp1) and another highly tissue-restricted (Ptbp2), regulate RNA in interrelated but incompletely understood ways. Ptbp1, a splicing regulator, is replaced in the brain and differentiated neuronal cell lines by Ptbp2. To define the roles of Ptbp2 in the nervous system, we generated two independent Ptbp2-null strains, unexpectedly revealing that Ptbp2 is expressed in neuronal progenitors and is essential for postnatal survival. A HITS-CLIP (high-throughput sequencing cross-linking immunoprecipitation)-generated map of reproducible Ptbp2-RNA interactions in the developing mouse neocortex, combined with results from splicing-sensitive microarrays, demonstrated that the major action of Ptbp2 is to inhibit adult-specific alternative exons by binding pyrimidine-rich sequences upstream of and/or within them. These regulated exons are present in mRNAs encoding proteins associated with control of cell fate, proliferation, and the actin cytoskeleton, suggesting a role for Ptbp2 in neurogenesis. Indeed, neuronal progenitors in the Ptbp2-null brain exhibited an aberrant polarity and were associated with regions of premature neurogenesis and reduced progenitor pools. Thus, Ptbp2 inhibition of a discrete set of adult neuronal exons underlies early brain development prior to neuronal differentiation and is essential for postnatal survival.

Indexed as

Alternative SplicingAnimalsBrainCell DifferentiationExonsHeterogeneous-Nuclear RibonucleoproteinsMiceMice, Mutant StrainsNerve Tissue ProteinsNeural Stem CellsPolypyrimidine Tract-Binding ProteinRNA, MessengerHeterogeneous-Nuclear RibonucleoproteinsNerve Tissue ProteinsPolypyrimidine Tract-Binding ProteinPtbp1 protein, mousePtbp2 protein, mouseRNA, Messenger

Identifiers

PMID22802532
PMCPMC3404389
OpenAlexW2005552396

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.