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Updated: May 27, 2026
14:32
Deacetylation Assays to Unravel the Interplay between Sirtuins (SIRT2) and Specific Protein-substrates
Published on: February 27, 2016
Sirtuins, aging, and metabolism
1Paul F Glenn Laboratory and Department of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA. leng@mit.edu
Cold Spring Harbor Symposia on Quantitative Biology
|November 25, 2011
Summary
Sirtuins, NAD-dependent enzymes, regulate metabolism and aging. Research highlights SIRT1 and SIRT3
Area of Science:
- Biochemistry
- Molecular Biology
- Gerontology
Background:
- Sirtuins are NAD-dependent protein deacetylases linking protein acetylation, metabolism, aging, and age-related diseases.
- Initially observed to slow aging in lower organisms, sirtuins mediate calorie restriction's effects on metabolism and longevity in mammals.
- This chapter specifically examines two mammalian sirtuins: SIRT1 (nuclear) and SIRT3 (mitochondrial).
Purpose of the Study:
- To explore the substrates of SIRT1 and SIRT3 and their role in determining metabolic strategies under varying food availability.
- To elucidate the mechanisms by which sirtuins connect protein acetylation and metabolism.
- To review emerging evidence of sirtuin protection against common age-related diseases.
Main Methods:
- Literature review and synthesis of existing research on sirtuin function.
- Analysis of protein substrates targeted by SIRT1 and SIRT3.
- Discussion of the biochemical pathways linking sirtuin activity to metabolic regulation and aging processes.
Main Results:
- Sirtuins, particularly SIRT1 and SIRT3, play a crucial role in adapting metabolism to nutrient availability.
- Protein acetylation is a key regulatory mechanism modulated by sirtuins, influencing metabolic pathways.
- Sirtuins demonstrate protective effects against a spectrum of age-related diseases.
Conclusions:
- Sirtuins are critical regulators of metabolism, aging, and cellular adaptation.
- Understanding sirtuin function provides insights into the molecular basis of aging and age-related diseases.
- Sirtuins represent promising pharmacological targets for combating age-related diseases.
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