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Phosphorylation of ULK1 serine 746 dictates ATG5-independent autophagy.
Autophagy ( IF 14.6 ) Pub Date : 2020-06-16 , DOI: 10.1080/15548627.2020.1780844
Xin Wen 1 , Daniel J Klionsky 1
Affiliation  

There is a type of noncanonical autophagy, which is independent of ATG5 (autophagy related 5), also referred to as alternative autophagy. Both canonical and ATG5-independent alternative autophagy require the initiator ULK1 (unc-51 like kinase 1), but how ULK1 regulates these two types of autophagy differently remains unclear. A recent paper from Torii et al. demonstrates that phosphorylation of ULK1 at Ser746 by RIPK3 (receptor interacting serine/threonine kinase 3) is the key difference between these two types of autophagy; this phosphorylation is exclusively found during alternative autophagy.



中文翻译:

ULK1 丝氨酸 746 的磷酸化决定了不依赖 ATG5 的自噬。

有一种非典型自噬,它独立于 ATG5(自噬相关 5),也称为替代自噬。规范的和不依赖 ATG5 的替代自噬都需要启动子 ULK1(像激酶 1 一样的 unc-51),但 ULK1 如何以不同的方式调节这两种类型的自噬仍不清楚。Torii 等人最近发表的一篇论文。证明 RIPK3(受体相互作用的丝氨酸/苏氨酸激酶 3)在 Ser746 位点磷酸化 ULK1 是这两种类型自噬之间的主要区别;这种磷酸化仅在替代性自噬过程中发现。

更新日期:2020-06-16
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