Isolation and characterization of autophagy-defective mutants of Saccharomyces cerevisiae.

Abstract excerpt

Autophagy in the yeast is similar to that in mammalian cells. A mutant designated as apg1 (autophagy) defective in accumulation of autophagic bodies in the vacuoles was isolated by selection using a light microscope from a mutagenized proteinase-deficient strain. In the apg1 strain, which has normal vacuolar proteinases, nitrogen starvation did not induce protein degradation. The apg1 mutant lost its viability...

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