Cited by 224DNA Repair MechanismsSirtuins and Resveratrol in MedicineNuclear Structure and Function

SIRT1 Regulates UV-Induced DNA Repair through Deacetylating XPA

Open access
Fan, Wei, Luo, Jianyuan·2010·Molecular Cell

Abstract

SIRT1, a NAD(+)-dependent histone deacetylase, plays crucial roles in multiple biological processes including gene transcription, cellular metabolism, stress response, and tumorigenesis. Xeroderma pigmentosum group A (XPA) is a core nucleotide excision repair (NER) factor essential for NER process. Here we show that SIRT1 plays an important role in the regulation of NER pathway. Downregulation of SIRT1 significantly sensitizes cells to UV irradiation. SIRT1 interacts with XPA, and the interaction is enhanced after UV irradiation. XPA can be acetylated at lysines 63 and 67. SIRT1 deacetylates XPA both in vitro and in cells. Importantly, SIRT1-mediated deacetylation of XPA is required for optimal NER pathway since XPA-deficient cells complemented with XPA-K6367Q, which mimics hyperacetylated XPA, display significantly higher UV sensitivity compared with the XPA cells complemented with wild-type XPA. Furthermore, SIRT1-mediated XPA deacetylation enhances its interaction with RPA32. Our results demonstrate that SIRT1 regulates NER pathway through modulation of XPA acetylation status.

Integrity signals

Registry

Crossref · 10.1016/j.molcel.2010.07.006

Cites

37 of 37 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

We couldn’t retrieve this paper’s full text, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Fan, W., & Luo, J.
Affiliations
  • University of Massachusetts Chan Medical School (US)
  • University of Maryland, Baltimore (US)
Corresponding author
Luo, Jianyuan
Venue
Molecular Cell
Publisher
Elsevier BV
Published
2010-07
Volume
39
Issue
2
Pages
247-258
ISSN
1097-2765 (ISSN-L)
OpenAlex
W2137855486
Cited by
223
References
37
Citations by year
2026: 6 · 2025: 12 · 2024: 4 · 2023: 7 · 2022: 11 · 2021: 15 · 2020: 23 · 2019: 14 · 2018: 12 · 2017: 15 · 2016: 10 · 2015: 18 · 2014: 19 · 2013: 24 · 2012: 17
FWCI
7.42
Type
journal article
Language
en
Open access
Locations
  • Molecular Cell (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institute on Aging (R01AG026534)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › DNA Repair Mechanisms
  • Health Sciences › Medicine › Geriatrics and Gerontology › Sirtuins and Resveratrol in Medicine
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Nuclear Structure and Function
Keywords
SIRT1, XPA, nucleotide excision repair, UV-induced DNA repair, histone deacetylase, protein acetylation, lysine acetylation, UV sensitivity, RPA32, protein-protein interaction, NAD+-dependent deacetylation
MeSH terms
Acetylation, DNA Repair, Genetic Complementation Test, HeLa Cells, Humans, Protein Processing, Post-Translational, Ultraviolet Rays, Mutation, Missense, Replication Protein A, Xeroderma Pigmentosum Group A Protein, Sirtuin 1

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review