SIRT2 is primarily localized in the cytoplasm but can also shuttle into the nucleus, where it regulates multiple cellular functions.
It deacetylates various substrates including histones and non-histone proteins, thereby influencing gene expression, cell cycle progression, and cytoskeletal dynamics.
SIRT2’s enzymatic activity is dependent on NAD⁺ levels, linking its function to the metabolic state of the cell.
Lower expression levels often correlate with more aggressive disease and poorer prognosis in certain contexts, although some studies suggest that overexpression can also be deleterious in specific settings.
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