Evidence map›Paper›PMID 21947282›Full record

ArticleMolecular and cellular biology2011

SIRT1 deacetylates the DNA methyltransferase 1 (DNMT1) protein and alters its activities.

Lirong Peng, Zhigang Yuan, Hongbo Ling, Kenji Fukasawa, Keith Robertson, Nancy Olashaw, John Koomen, Jiandong Chen, William S Lane, Edward Seto

Open access · greenAbstract read
In one paragraph

Article in Molecular and cellular biology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 126 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
126citing papers in PubMed, 1 pooled it
6.8field-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

126 citing papers in PubMed, 1 synthesis or guideline pooled it, 225 citations in OpenAlex.

  1. Pooled it
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  15. Article
  16. Electro-Metabolic Coupling of Cumulus-Oocyte Complex.International journal of molecular sciences · 2024
    Review
  17. How calorie restriction slows aging: an epigenetic perspective.Journal of molecular medicine (Berlin, Germany) · 2024
    Review
  18. Epigenetic Switches in Retinal Homeostasis and Target for Drug Development.International journal of molecular sciences · 2024
    Review
  19. Review
  20. DNA methylation extends lifespan in the bumblebeeProceedings. Biological sciences · 2023
    Article

66 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

10 authors at 4 institutions in 1 country.

Lirong PengDepartment of Molecular Oncology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida 33612, USA.
Zhigang Yuan
Hongbo Ling
Kenji Fukasawa
Keith Robertson
Nancy Olashaw
John Koomen
Jiandong Chen
William S Lane
Edward Seto
Molecular Oncology (United States) · USMoffitt Cancer Center · USAugusta University · USHarvard University · US

Funding

TRANSLATIONAL RESEARCHP30CA076292 · NCI · UNIVERSITY OF SOUTH FLORIDA · PI KENNETH Lynn WRIGHT · 1998 to 2026
$93.5M
Regulation of non-histone protein functions by histone deacetylasesR01GM081650 · NIGMS · H. LEE MOFFITT CANCER CTR & RES INST · PI SETO, EDWARD · 2009 to 2010
$685k
NCI NIH HHS P30 CA076292NIGMS NIH HHS GM081650NIGMS NIH HHS R01 GM081650
6 · The paper itself

Abstract

DNA methylation and histone acetylation/deacetylation are distinct biochemical processes that control gene expression. While DNA methylation is a common epigenetic signal that inhibits gene transcription, histone deacetylation similarly represses transcription but can be both an epigenetic and nonepigenetic phenomenon. Here we report that the histone deacetylase SIRT1 regulates the activities of DNMT1, a key enzyme responsible for DNA methylation. In mass spectrometry analysis, 12 new acetylated lysine sites were identified in DNMT1. SIRT1 physically associates with DNMT1 and can deacetylate acetylated DNMT1 in vitro and in vivo. Interestingly, deacetylation of different lysines on DNMT1 has different effects on the functions of DNMT1. For example, deacetylation of Lys1349 and Lys1415 in the catalytic domain of DNMT1 enhances DNMT1's methyltransferase activity, while deacetylation of lysine residues in the GK linker decreases DNMT1's methyltransferase-independent transcriptional repression function. Furthermore, deacetylation of all identified acetylated lysine sites in DNMT1 abrogates its binding to SIRT1 and impairs its capability to regulate cell cycle G(2)/M transition. Finally, inhibition of SIRT1 strengthens the silencing effects of DNMT1 on the expression of tumor suppressor genes ER-α and CDH1 in MDA-MB-231 breast cancer cells. Together, these results suggest that SIRT1-mediated deacetylation of DNMT1 is crucial for DNMT1's multiple effects in gene silencing.

Indexed as

Gene Expression RegulationAcetylationAnimalsCell Cycle CheckpointsCell NucleusCells, CulturedDNA (Cytosine-5-)-Methyltransferase 1DNA (Cytosine-5-)-MethyltransferasesEnzyme AssaysGene ExpressionGene SilencingHistone Deacetylase InhibitorsHumansImmunoprecipitationKineticsMiceDNA (Cytosine-5-)-Methyltransferase 1DNA (Cytosine-5-)-MethyltransferasesDNMT1 protein, humanDnmt1 protein, mouseHistone Deacetylase Inhibitorsp300-CBP-Associated Factorp300-CBP Transcription FactorsSIRT1 protein, humanSirtuin 1Tumor Suppressor Proteins

Identifiers

PMID21947282
PMCPMC3232929
OpenAlexW2126088939

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.