Evidence map›Paper›PMID 29440709›Full record

ArticleOncogene2018

BRCA1 function in the intra-S checkpoint is activated by acetylation via a pCAF/SIRT1 axis.

Tyler J Lahusen, Seung-Jin Kim, Kai Miao, Zebin Huang, Xiaoling Xu, Chu-Xia Deng

Abstract read
PubMed Publisher
In one paragraph

Article in Oncogene, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.4field-weighted citation impact, top 23% 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

13 citing papers in PubMed, 21 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Review
  5. Deacetylation of Transcription Factors in Carcinogenesis.International journal of molecular sciences · 2021
    Review
  6. Article
  7. Article
  8. SIRT6 Through the Brain Evolution, Development, and Aging.Frontiers in aging neuroscience · 2021
    Article
  9. Article
  10. Review
  11. Article
  12. Updates on the epigenetic roles of sirtuins.Current opinion in chemical biology · 2019
    Review
  13. 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

6 authors at 2 institutions in 2 countries.

Tyler J LahusenGenetics of Development and Disease Branch, 10/9N105, National Institute of Diabetes, Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, 20892, USA.
Seung-Jin KimGenetics of Development and Disease Branch, 10/9N105, National Institute of Diabetes, Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, 20892, USA.
Kai MiaoFaculty of Health Sciences, University of Macau, Macau, SAR, China.
Zebin HuangFaculty of Health Sciences, University of Macau, Macau, SAR, China.
Xiaoling XuFaculty of Health Sciences, University of Macau, Macau, SAR, China.
Chu-Xia DengGenetics of Development and Disease Branch, 10/9N105, National Institute of Diabetes, Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, 20892, USA. cxdeng@umac.mo.
University of Macau · MONational Institute of Diabetes and Digestive and Kidney Diseases · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Breast cancer associated gene 1 (BRCA1) function has been shown to be regulated by phosphorylation but the role of acetylation has not been determined. Therefore, we tested whether BRCA1 can be acetylated by the acetyltransferases P300/CBP-associated factor (pCAF), GCN5, and p300. p300 exhibited the highest level of BRCA1 acetylation; however, there was also a decrease in the total level of BRCA1. Therefore, we focused on pCAF and GCN5 because they both acetylated BRCA1 without affecting BRCA1 expression. Further analysis indicated that the acetylated form of BRCA1 is deacetylated by wild-type (WT) SIRT1, but not deacetylase mutant SIRT1, suggesting that SIRT1 is a specific deacetylase of BRCA1. We demonstrated that lysine 830 of BRCA1 is a preferential acetylation site by pCAF and tested its function in embryonic stem (ES) cells by changing lysine 830 to arginine using a transcription activator-like effector nuclease (TALEN) system. After exposure to DNA damage-inducing UV radiation, the viability of BRCA1 K830R mutant cells is greater than the WT ES cells. Further analysis using additional cell lines indicated that the BRCA1 K830R mutation impairs the intra-S checkpoint. Also, checkpoint kinase 1 (CHK1) phosphorylation was less in K830R cells as compared with WT cells after UV exposure. These data suggest that acetylation of BRCA1 on lysine 830 activates BRCA1 function at the intra-S checkpoint after DNA damage.

Indexed as

S Phase Cell Cycle CheckpointsAcetylationBRCA1 ProteinCells, CulturedDNA DamageHEK293 CellsHumansMutant Proteinsp300-CBP-Associated Factorp300-CBP Transcription FactorsProtein Processing, Post-TranslationalSignal TransductionSirtuin 1BRCA1 ProteinBRCA1 protein, humanMutant Proteinsp300-CBP-Associated Factorp300-CBP Transcription FactorsSIRT1 protein, humanSirtuin 1

Identifiers

PMID29440709
OpenAlexW2791359507

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.