Based on studies in mice, SIRT6-mediated deacetylation of lysine residue 10 of H3 histones (removal of H3K9Ac epigenetic mark) at promoters of NOTCH1 and NOTCH4 genes inhibits transcription of NOTCH1 and NOTCH4. SIRT6-mediated downregulation of NOTCH1 and NOTCH4 may protect podocytes, kidney cells involved in blood filtering, from injury. SIRT6 is downregulated in podocytes of patients with podocytopathies, such as proteinuric kidney disease, and SIRT6 levels correlate with glomerular filtration rate (Liu et al. 2017).
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