Title |
The Parkinson's disease–linked proteins Fbxo7 and Parkin interact to mediate mitophagy
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Published in |
Nature Neuroscience, August 2013
|
DOI | 10.1038/nn.3489 |
Pubmed ID | |
Authors |
Victoria S Burchell, David E Nelson, Alvaro Sanchez-Martinez, Marta Delgado-Camprubi, Rachael M Ivatt, Joe H Pogson, Suzanne J Randle, Selina Wray, Patrick A Lewis, Henry Houlden, Andrey Y Abramov, John Hardy, Nicholas W Wood, Alexander J Whitworth, Heike Laman, Helene Plun-Favreau |
Abstract |
Compelling evidence indicates that two autosomal recessive Parkinson's disease genes, PINK1 (PARK6) and Parkin (PARK2), cooperate to mediate the autophagic clearance of damaged mitochondria (mitophagy). Mutations in the F-box domain-containing protein Fbxo7 (encoded by PARK15) also cause early-onset autosomal recessive Parkinson's disease, by an unknown mechanism. Here we show that Fbxo7 participates in mitochondrial maintenance through direct interaction with PINK1 and Parkin and acts in Parkin-mediated mitophagy. Cells with reduced Fbxo7 expression showed deficiencies in translocation of Parkin to mitochondria, ubiquitination of mitofusin 1 and mitophagy. In Drosophila, ectopic overexpression of Fbxo7 rescued loss of Parkin, supporting a functional relationship between the two proteins. Parkinson's disease-causing mutations in Fbxo7 interfered with this process, emphasizing the importance of mitochondrial dysfunction in Parkinson's disease pathogenesis. |
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Mendeley readers
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Student > Doctoral Student | 12 | 4% |
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