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Letter

Nature Genetics 33, 522–526 (1 April 2003) | doi:10.1038/ng1132

Sir3p phosphorylation by the Slt2p pathway effects redistribution of silencing function and shortened lifespan

Alo Ray , Ronald E. Hector , Nilanjan Roy , Jee-Hyeon Song , Kathleen L. Berkner & Kurt W. Runge

An organism's lifespan is modulated by environmental conditions. When nutrients are abundant, the metabolism of many organisms shifts to growth or reproduction at the expense of longer lifespan, whereas a scarcity of nutrients reverses this shift.