Abstract
The mitochondrial (mt) molecular chaperone Hsp60 is critical in proteostasis by catalyzing ATP-dependent folding of mitochondrial proteins. In a manner analogous to bacterial GroELS, mtHsp60 is proposed to function by enclosing unfolded ‘client’ proteins in its central chamber, formed in part by its co-chaperone mtHsp10, allowing them to fold without interference from other cellular components. Mutations in mtHsp60 cause severe neurodegenerative diseases termed hereditary spastic paraplegias, and mtHsp60 expression is upregulated in a subset of cancers, making this chaperone a significant therapeutic target.
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