Cited by 182Sirtuins and Resveratrol in MedicineAdipose Tissue and MetabolismAutophagy in Disease and Therapy

SIRT3 regulates mitochondrial protein acetylation and intermediary metabolism

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Hirschey, M. D., Shimazu, T., Huang, J.- Y., Schwer, B., Verdin, E.·2011·Cold Spring Harbor Symposia on Quantitative Biology

Abstract

The sirtuins are a family of nicotinamide adenine dinucleotide (NAD(+))-dependent protein deacetylases that regulate cell survival, metabolism, and longevity. Humans have seven sirtuins (SIRT1-SIRT7) with distinct subcellular locations and functions. SIRT3 is localized to the mitochondrial matrix and its expression is selectively activated during fasting and calorie restriction. Activated SIRT3 deacetylates several key metabolic enzymes-acetyl-coenzyme A synthetase, long-chain acyl-coenzyme A (acyl-CoA) dehydrogenase (LCAD), and 3-hydroxy-3-methylglutaryl CoA synthase 2-and enhances their enzymatic activity. Disruption of SIRT3 activity in mice, either by genetic ablation or during high-fat feeding, is associated with accelerated development of metabolic abnormalities similar to the metabolic syndrome in humans. SIRT3 is therefore emerging as a metabolic sensor that responds to change in the energy status of the cell and modulates the activity of key metabolic enzymes via protein deacetylation.

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Crossref · 10.1101/sqb.2011.76.010850

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  • Acetylation of AceCS2 on a specific lysine inhibits its ability to convert acetate into acetyl-CoA, and this regulatory scheme is conserved from Salmonella to mammals.

    “AceCS2 is acetylated on a specific lysine residue that inhibits the ability of the enzyme to convert acetate into acetyl-CoA, a regulatory scheme conserved from Salmonella to mammals”

    From Influence of Metabolism on Epigenetics and Disease (2013) · cites this paper as Hirschey et al., 2011

  • Acetylation of long-chain fatty acyl-CoA dehydrogenase, one of the four enzymes involved in the mitochondrial fat oxidation pathway, causes its inactivation, leading to fat accumulation.

    “For instance, acetylation of long-chain fatty acyl-CoA dehydrogenase, one of the four enzymes involved in the mitochondrial fat oxidation pathway, causes its inactivation, leading to fat accumulation [154], [155].”

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Research works printed but not linked: 1

  1. Reinberg D. 2011. Nuclear function of SirT3. Cold Spring Harb Symp Quant Biol doi: 10.1101/sqb.2011.76.a010744 (in press). · DOI

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Authors
Hirschey, M. D., Shimazu, T., Huang, J. Y., Schwer, B., & Verdin, E.
Affiliations
Gladstone Institutes (US)
Corresponding author
Verdin, E.
Venue
Cold Spring Harbor Symposia on Quantitative Biology
Published
2011-01-01
Volume
76
Issue
0
Pages
267-277
ISSN
  • 0091-7451 (ISSN-L)
  • 1943-4456
OpenAlex
W2108335191
Cited by
180
References
111
Citations by year
2026: 7 · 2025: 5 · 2024: 12 · 2023: 6 · 2022: 13 · 2021: 12 · 2020: 14 · 2019: 17 · 2018: 10 · 2017: 16 · 2016: 18 · 2015: 10 · 2014: 20 · 2013: 11 · 2012: 8
Type
posted content
Language
en
Open access
Locations
  • Cold Spring Harbor Symposia on Quantitative Biology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Ellison Medical Foundation
  • Larry L. Hillblom Foundation
  • Sandler Foundation
  • Gladstone Institutes
  • University of California, San Francisco (P30DK026743)
  • National Institute of Diabetes and Digestive and Kidney Diseases (R24DK085610, R24 P30 DK026743, DK026743, DK085610, P30DK026743)
  • Liver Center, University of California, San Francisco (P30 DK026743)
Topics
  • Health Sciences › Medicine › Geriatrics and Gerontology › Sirtuins and Resveratrol in Medicine
  • Health Sciences › Medicine › Physiology › Adipose Tissue and Metabolism
  • Health Sciences › Medicine › Epidemiology › Autophagy in Disease and Therapy
Keywords
SIRT3, sirtuins, mitochondrial protein acetylation, protein deacetylation, NAD+-dependent deacetylase, mitochondrial metabolism, intermediary metabolism, metabolic syndrome, fasting, caloric restriction, acetyl-CoA synthetase, long-chain acyl-CoA dehydrogenase, energy sensing, high-fat feeding
MeSH terms
Acetylation, Animals, Fasting, Humans, NAD, Mitochondrial Proteins, Caloric Restriction, Sirtuin 3

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