Reference: Sauve AA (2010) Sirtuin chemical mechanisms. Biochim Biophys Acta 1804(8):1591-603

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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.

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Journal Article | Research Support, N.I.H., Extramural | Research Support, Non-U.S. Gov't | Review
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Sauve AA
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