Old enzymes, new tricks: sirtuins are NAD(+)-dependent de-acylases.
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- Record sourced from PubMed, PMID 22100408.
- Also identified by DOI 10.1016/j.cmet.2011.10.006 and PMC identifier 3830953.
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Abstract
Seven mammalian sirtuins are nicotinamide adenine dinucleotide (NAD)(+)-dependent deacetylases and are important modulators of energy metabolism and stress resistance. Two new studies by Du et al. (2011) and Peng et al. (2011) identify a new enzymatic activity for SIRT5, expanding the cellular repertoire of posttranslational modifications targeted by the sirtuins.