Zinc deficiency: An unexpected trigger for autophagy [Cell Biology]

Cells respond to deprivation of certain nutrients such as glucose or nitrogen by inducing autophagy, reclaiming pieces of proteins for use in critical functions. A recent study shows that, in yeast, zinc depletion acts in a similar fashion. Depletion of this essential nutrient induces non-selective autophagy by inhibiting TORC1, leading to release and recycling of zinc from degraded proteins.

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