SGD Paper 
Joo JH, et al. (2011) Hsp90-cdc37 chaperone complex regulates ulk1- and atg13-mediated mitophagy. Mol Cell 43(4):572-85
Abstract: Autophagy, the primary recycling pathway of cells, plays a critical role in mitochondrial quality control under normal growth conditions and in the response to cellular stress. The Hsp90-Cdc37 chaperone complex coordinately regulates the activity of select kinases to orchestrate many facets of the stress response. Although both maintain mitochondrial integrity, the relationship between Hsp90-Cdc37 and autophagy has not been well characterized. Ulk1, one of the mammalian homologs of yeast Atg1, is a serine-threonine kinase required for mitophagy. Here we show that the interaction between Ulk1 and Hsp90-Cdc37 stabilizes and activates Ulk1, which in turn is required for the phosphorylation and release of Atg13 from Ulk1, and for the recruitment of Atg13 to damaged mitochondria. Hsp90-Cdc37, Ulk1, and Atg13 phosphorylation are all required for efficient mitochondrial clearance. These findings establish a direct pathway that integrates Ulk1- and Atg13-directed mitophagy with the stress response coordinated by Hsp90 and Cdc37.CI - Copyright (c) 2011 Elsevier Inc. All rights reserved.
| Status: Published | Type: Journal Article | PubMed ID: 21855797 |
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| Topics | Genes linked to topics |
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| ATG1 | |
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| Non-Fungal Related Genes/Proteins | |
