Evidence map›Paper›PMID 9234723›Full record

ArticleMolecular and cellular biology1997

The polypyrimidine tract binding protein binds upstream of neural cell-specific c-src exon N1 to repress the splicing of the intron downstream.

R C Chan, D L Black

Open access · bronzeAbstract read
In one paragraph

Article in Molecular and cellular biology, 1997. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 95 papers.

0numbers the graph read from it
0cells of the map it votes in
95citing papers in PubMed
6.5field-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

95 citing papers in PubMed, 215 citations in OpenAlex.

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  16. Diverse regulation of 3' splice site usage.Cellular and molecular life sciences : CMLS · 2015
    Review
  17. Article
  18. Article
  19. Review
  20. RNA protein interaction in neurons.Annual review of neuroscience · 2013
    Review

35 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

2 authors at 2 institutions in 1 country.

R C ChanMolecular Biology Institute, University of California, Los Angeles, USA.
D L Black
Howard Hughes Medical Institute · USUniversity of California, Los Angeles · US

Funding

NEURON-SPECIFIC REGULATION OF C-SRC ALTERNATIVE SPLICINGR29GM049662 · NIGMS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI BLACK, DOUGLAS L. · 1993 to 1997
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NIGMS NIH HHS GM07185NIGMS NIH HHS R29 GM49662-04
6 · The paper itself

Abstract

The neural cell-specific N1 exon of the c-src pre-mRNA is both negatively regulated in nonneural cells and positively regulated in neurons. We previously identified conserved intronic elements flanking N1 that direct the repression of N1 splicing in a nonneural HeLa cell extract. The upstream repressor elements are located within the polypyrimidine tract of the N1 exon 3' splice site. A short RNA containing this 3' splice site sequence can sequester trans-acting factors in the HeLa extract to allow splicing of N1. We now show that these upstream repressor elements specifically interact with the polypyrimidine tract binding protein (PTB). Mutations in the polypyrimidine tract reduce both PTB binding and the ability of the competitor RNA to derepress splicing. Moreover, purified PTB protein restores the repression of N1 splicing in an extract derepressed by a competitor RNA. In this system, the PTB protein is acting across the N1 exon to regulate the splicing of N1 to the downstream exon 4. This mechanism is in contrast to other cases of splicing regulation by PTB, in which the protein represses the splice site to which it binds.

Indexed as

AnimalsBase SequenceCell ExtractsCell NucleusExonsGenes, srcHeLa CellsHumansIntronsMiceMolecular Sequence DataMolecular WeightMutationNeuronsOligoribonucleotidesPolypyrimidine Tract-Binding ProteinCell ExtractsOligoribonucleotidesPolypyrimidine Tract-Binding ProteinPyrimidinesRibonucleoproteinsRNA-Binding ProteinsRNA Precursors

Identifiers

PMID9234723
PMCPMC232319
OpenAlexW2149503712

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.