Evidence map›Paper›PMID 15299088›Full record

ArticleNucleic acids research2004

hnRNP H binding at the 5' splice site correlates with the pathological effect of two intronic mutations in the NF-1 and TSHbeta genes.

Emanuele Buratti, Marco Baralle, Laura De Conti, Diana Baralle, Maurizio Romano, Youhna M Ayala, Francisco E Baralle

Abstract read
In one paragraph

Article in Nucleic acids research, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed
–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

39 citing papers in PubMed.

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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.

Emanuele BurattiInternational Centre for Genetic Engineering and Biotechnology, 34012 Trieste, Italy.
Marco Baralle
Laura De Conti
Diana Baralle
Maurizio Romano
Youhna M Ayala
Francisco E Baralle

Funding

Telethon GGP02453
6 · The paper itself

Abstract

We have recently reported a disease-causing substitution (+5G > C) at the donor site of NF-1 exon 3 that produces its skipping. We have now studied in detail the splicing mechanism involved in analyzing RNA-protein complexes at several 5' splice sites. Characteristic protein patterns were observed by pulldown and band-shift/super-shift analysis. Here, we show that hnRNP H binds specifically to the wild-type GGGgu donor sequence of the NF-1 exon 3. Depletion analyses shows that this protein restricts the accessibility of U1 small nuclear ribonucleoprotein (U1snRNA) to the donor site. In this context, the +5G > C mutation abolishes both U1snRNP base pairing and the 5' splice site (5'ss) function. However, exon recognition in the mutant can be rescued by disrupting the binding of hnRNP H, demonstrating that this protein enhances the effects of the +5G > C substitution. Significantly, a similar situation was found for a second disease-causing +5G > A substitution in the 5'ss of TSHbeta exon 2, which harbors a GGgu donor sequence. Thus, the reason why similar nucleotide substitutions can be either neutral or very disruptive of splicing function can be explained by the presence of specific binding signatures depending on local contexts.

Indexed as

Point MutationRNA Splice SitesRNA SplicingBinding SitesExonsGenetic Predisposition to DiseaseHeLa CellsHeterogeneous-Nuclear Ribonucleoprotein Group F-HHeterogeneous-Nuclear RibonucleoproteinsHumansIntronsModels, GeneticNeurofibromin 1Ribonucleoprotein, U1 Small NuclearRNA, MessengerThyrotropin, beta SubunitHeterogeneous-Nuclear Ribonucleoprotein Group F-HHeterogeneous-Nuclear RibonucleoproteinsNeurofibromin 1Ribonucleoprotein, U1 Small NuclearRNA, MessengerRNA Splice SitesThyrotropin, beta Subunit

Identifiers

PMID15299088
PMCPMC514374

What OpenQuestion holds

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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.