Evidence map›Paper›PMID 11287626›Full record

ArticleMolecular and cellular biology2001

Hepatic nuclear factor 1-alpha directs nucleosomal hyperacetylation to its tissue-specific transcriptional targets.

M Párrizas, M A Maestro, S F Boj, A Paniagua, R Casamitjana, R Gomis, F Rivera, J Ferrer

Open access · greenAbstract read
In one paragraph

Article in Molecular and cellular biology, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 57 papers.

0numbers the graph read from it
0cells of the map it votes in
57citing papers in PubMed
10.4field-weighted citation impact, top 1% 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

57 citing papers in PubMed, 140 citations in OpenAlex.

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  8. Review
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  13. Role of Fibrinogen-like Protein 1 in Tumor Recurrence Following Hepatectomy.Journal of clinical and translational hepatology · 2024
    Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. HNF1A Mutations and Beta Cell Dysfunction in Diabetes.International journal of molecular sciences · 2022
    Review
  19. Biomedical reports · 2021
    Article
  20. Article
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

8 authors at 1 institution in 1 country.

M PárrizasEndocrinology and Hormonal Biochemistry units, Hospital Clínic, Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain 08036.
M A Maestro
S F Boj
A Paniagua
R Casamitjana
R Gomis
F Rivera
J Ferrer
Consorci Institut D'Investigacions Biomediques August Pi I Sunyer · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Mutations in the gene encoding hepatic nuclear factor 1-alpha (HNF1-alpha) cause a subtype of human diabetes resulting from selective pancreatic beta-cell dysfunction. We have analyzed mice lacking HNF1-alpha to study how this protein controls beta-cell-specific transcription in vivo. We show that HNF1-alpha is essential for the expression of glut2 glucose transporter and L-type pyruvate kinase (pklr) genes in pancreatic insulin-producing cells, whereas in liver, kidney, or duodenum tissue, glut2 and pklr expression is maintained in the absence of HNF1-alpha. HNF1-alpha nevertheless occupies the endogenous glut2 and pklr promoters in both pancreatic islet and liver cells. However, it is indispensable for hyperacetylation of histones in glut2 and pklr promoter nucleosomes in pancreatic islets but not in liver cells, where glut2 and pklr chromatin remains hyperacetylated in the absence of HNF1-alpha. In contrast, the phenylalanine hydroxylase promoter requires HNF1-alpha for transcriptional activity and localized histone hyperacetylation only in liver tissue. Thus, different HNF1-alpha target genes have distinct requirements for HNF1-alpha in either pancreatic beta-cells or liver cells. The results indicate that HNF1-alpha occupies target gene promoters in diverse tissues but plays an obligate role in transcriptional activation only in cellular- and promoter-specific contexts in which it is required to recruit histone acetylase activity. These findings provide genetic evidence based on a live mammalian system to establish that a single activator can be essential to direct nucleosomal hyperacetylation to transcriptional targets.

Indexed as

DNA-Binding ProteinsGene Expression RegulationHomeodomain ProteinsAcetylationAnimalsChromatinGlucose Transporter Type 2Hepatocyte Nuclear Factor 1Hepatocyte Nuclear Factor 1-alphaHepatocyte Nuclear Factor 1-betaHepatocytesHistonesInsulinIslets of LangerhansLiverMiceChromatinDNA-Binding ProteinsGlucose Transporter Type 2Hepatocyte Nuclear Factor 1Hepatocyte Nuclear Factor 1-alphaHepatocyte Nuclear Factor 1-betaHistonesHnf1a protein, mouseHnf1b protein, mouseHomeodomain ProteinsInsulinMonosaccharide Transport ProteinsNuclear ProteinsNucleosomespancreatic and duodenal homeobox 1 proteinPyruvate KinaseRNA, MessengerTrans-ActivatorsTranscription Factors

Identifiers

PMID11287626
PMCPMC86965
OpenAlexW2042126195

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.