Abstract
Silent information regulator 2 (Sir2) enzymes or sirtuins are a family of evolutionarily conserved intracellular protein deacetylases that can catalyze the acetyl group removal from the specific Nε-acetyl-lysine (AcK) side chains on a variety of proteins from all kingdoms of life. Yeast Sir2 was the first sirtuin identified, and so far seven sirtuins (i.e. SIRT1-7) have been found in mammals including humans. The sirtuin-catalyzed deacetylation reaction has captured tremendous interest during the past a few years because of (i) its increasingly demonstrated importance in many crucial biological processes such as gene transcription, metabolism, and aging, and thus its therapeutic potential for metabolic and age-related diseases and cancer, and (ii) its unique deacetylation chemistry. Specifically, the sirtuin-catalyzed AcK side chain deacetylation is not merely an amide hydrolysis reaction, instead is coupled to the nicotinamide cleavage from β- nicotinamide adenine dinucleotide (β-NAD+ or NAD+) with the generation of three enzymatic products, i.e. the deacetylated protein species, nicotinamide, and 2’-O-acetyl-ADP-ribose (2’-O-AADPR). Here the author would like to review the past endeavors on developing mechanism-based sirtuin modulators (inhibitors and activators). The first part of this article will provide an updated mechanistic picture of the sirtuin-catalyzed deacetylation reaction. The second part will be focused on how the mechanistic knowledge has been exploited for the design of effective sirtuin modulators.
Keywords: Activator, Inhibitor, Mechanism, Mechanism-based, Protein deacetylase, Sirtuin
Mini-Reviews in Medicinal Chemistry
Title:Mechanism-based Modulator Discovery for Sirtuin-catalyzed Deacetylation Reaction
Volume: 13 Issue: 1
Author(s): Weiping Zheng
Affiliation:
Keywords: Activator, Inhibitor, Mechanism, Mechanism-based, Protein deacetylase, Sirtuin
Abstract: Silent information regulator 2 (Sir2) enzymes or sirtuins are a family of evolutionarily conserved intracellular protein deacetylases that can catalyze the acetyl group removal from the specific Nε-acetyl-lysine (AcK) side chains on a variety of proteins from all kingdoms of life. Yeast Sir2 was the first sirtuin identified, and so far seven sirtuins (i.e. SIRT1-7) have been found in mammals including humans. The sirtuin-catalyzed deacetylation reaction has captured tremendous interest during the past a few years because of (i) its increasingly demonstrated importance in many crucial biological processes such as gene transcription, metabolism, and aging, and thus its therapeutic potential for metabolic and age-related diseases and cancer, and (ii) its unique deacetylation chemistry. Specifically, the sirtuin-catalyzed AcK side chain deacetylation is not merely an amide hydrolysis reaction, instead is coupled to the nicotinamide cleavage from β- nicotinamide adenine dinucleotide (β-NAD+ or NAD+) with the generation of three enzymatic products, i.e. the deacetylated protein species, nicotinamide, and 2’-O-acetyl-ADP-ribose (2’-O-AADPR). Here the author would like to review the past endeavors on developing mechanism-based sirtuin modulators (inhibitors and activators). The first part of this article will provide an updated mechanistic picture of the sirtuin-catalyzed deacetylation reaction. The second part will be focused on how the mechanistic knowledge has been exploited for the design of effective sirtuin modulators.
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Cite this article as:
Zheng Weiping, Mechanism-based Modulator Discovery for Sirtuin-catalyzed Deacetylation Reaction, Mini-Reviews in Medicinal Chemistry 2013; 13 (1) . https://dx.doi.org/10.2174/1389557511307010132
DOI https://dx.doi.org/10.2174/1389557511307010132 |
Print ISSN 1389-5575 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-5607 |
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