SirT1 catalytic activity is required for male fertility and metabolic homeostasis in mice

Abstract excerpt

The protein encoded by the sirt1 gene is an enzyme, SirT1, that couples the hydrolysis of NAD(+) to the deacetylation of acetyl-lysine residues in substrate proteins. Mutations of the sirt1 gene that fail to encode protein have been introduced into the mouse germ line, and the animals homozygous for these null mutations have various physiological abnormalities. To determine which of the characteristics of these...

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