Msp1-dependent extraction promotes ubiquitylation of translocation-stalled mitochondrial precursor proteins
The translocase of the outer membrane (TOM complex) imports more than 1,000 proteins into mitochondria. Clogging of the TOM pore with a precursor protein causes proteotoxic stress and eventually cell death. Two quality control pathways remove translocation-stalled precursor proteins. In the mitochondrial protein translocation-associated degradation (mitoTAD), Ubx2 recruits the cytosolic…
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