Role of ULK-FIP200 complex in mammalian autophagy FIP200, a counterpart of yeast Atg 17?
Role of ULK-FIP200 complex in mammalian autophagy FIP200, a counterpart of yeast Atg 17?
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DOI:
10.4161/auto.5.1.7180
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发表时间:
2009-01-01
期刊:
影响因子:
13.3
通讯作者:
Mizushima, Noboru
中科院分区:
文献类型:
--
作者:
Hara, Taichi;Mizushima, Noboru
The yeast serine threonine kinase Atg1 appears to be a key regulator of autophagy and its kinase activity is crucial for autophagy induction. Recent reports have indicated that a mammalian Atg1 homolog, UNC-51-like kinase (ULK) 1, is required for autophagy. We found that ULK1 localizes to the autophagic isolation membrane and its kinase activity is important for autophagy induction. Furthermore, we identified a focal adhesion kinase (FAK) family interacting protein of 200 W (FIP200) as a ULK-interacting protein. FIP200 also localizes to the isolation membrane together with ULK. Using FIP200-deficient cells, we found that FIP200 is essential for autophagosome formation and the proper function of ULK. Here, we discuss the role of the ULK-FIP200 complex in autophagy and the possibility that FIP200 functions as a mammalian counterpart of Atg17.