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ULK1 targets Beclin-1 in autophagy

The substrates of mammalian ULK1/2 and its yeast homologue Atg1 in autophagy have remained elusive. The class III phosphatidylinositol 3-kinase component Beclin-1 has now been identified as a physiological substrate of the ULK kinases in autophagy following amino acid starvation, therefore suggesting a critical molecular link between the upstream kinases and the autophagy core machinery.

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Figure 1: ULK kinases activate the class III PI(3)K in autophagy following amino acid starvation and nutrient limitation.

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Correspondence to Qing Zhong.

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Nazarko, V., Zhong, Q. ULK1 targets Beclin-1 in autophagy. Nat Cell Biol 15, 727–728 (2013). https://doi.org/10.1038/ncb2797

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