Sirtuin (silent mating type information regulation 2 homolog) 3 (S. cerevisiae) Adenovirus

The Silent Information Regulator (SIR2) family of genes are highly conserved from prokaryotes to eukaryotes and are involved in diverse processes, including transcriptional regulation, cell cycle progression, DNA-damage repair and aging. The human sirtuins, which include SIRT1-7, are divided into four main branches: SIRT1-3 are class I, SIRT4 is class II, SIRT5 is class III and SIRT6-7 are class IV. SIRT1 is widely expressed and regulates p53 function through its deacetylation at lysine 382.