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Nature structural & molecular biology

Structural basis for specific cleavage of Lys6-linked polyubiquitin chains by USP30.


PMID 28945247

Abstract

Parkin ubiquitin (Ub) ligase (also known as PARK2) ubiquitinates damaged mitochondria for their clearance and quality control. USP30 deubiquitinase opposes parkin-mediated Ub-chain formation on mitochondria by preferentially cleaving Lys6-linked Ub chains. Here, we report the crystal structure of zebrafish USP30 in complex with a Lys6-linked diubiquitin (diUb or Ub