Cancer checkpoint
April 4, 2013
Researchers studying a set of proteins that regulate physiology, caloric restriction and aging have discovered another important role that one of them plays. SIRT4, one of seven sirtuin proteins, is known for controlling fuel usage from its post in the mitochondria, the cell's energy source. It responds to stressful changes in the availability of nutrients for the cell.
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Reading level: Grade 12
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