SIRT5 is a member of the sirtuin family of proteins, homologs to the yeast Sir2 protein. Members of the sirtuin family are characterized by a sirtuin core domain and grouped into four classes. The functions of human sirtuins have not yet been determined, however, yeast sirtuin proteins are known to regulate epigenetic gene silencing and suppress recombination of rDNA. Studies suggest that the human sirtuins may function as intracellular regulatory proteins with mono-ADP-ribosyltransferase activity.
Alternate names: NAD-dependent deacetylase sirtuin-5, SIR2-like protein 5, SIR2L5, SIRT-5, sirtuin (silent mating type information regulation 2 homolog) 5 (S. cerevisiae), sirtuin 5, sirtuin type 5, sirtuin-5