| Literature DB >> 20132909 |
Abstract
Sirtuins are ancient proteins widely distributed in all lifeforms of earth. These proteins are universally able to bind NAD(+), and activate it to effect ADP-ribosylation of cellular nucleophiles. The most commonly observed sirtuin reaction is the ADP-ribosylation of acetyllysine, which leads to NAD(+)-dependent deacetylation. Other types of ADP-ribosylation have also been observed, including protein ADP-ribosylation, NAD(+) solvolysis and ADP-ribosyltransfer to 5,6-dimethylbenzimidazole, a reaction involved in eubacterial cobalamin biosynthesis. This review broadly surveys the chemistries and chemical mechanisms of these enzymes. Copyright 2010 Elsevier B.V. All rights reserved.Entities:
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Year: 2010 PMID： 20132909 PMCID： PMC2886189 DOI： 10.1016/j.bbapap.2010.01.021
Source DB: PubMed Journal: Biochim Biophys Acta ISSN： 0006-3002