Evidence for a direct role of the Doa4 deubiquitinating enzyme in protein sorting into the MVB pathway.

Abstract excerpt

Degradation of various membrane proteins in the lumen of the vacuole/lysosome requires their prior sorting into the multivesicular body (MVB) pathway. In this process, ubiquitin serves as a sorting signal for most cargoes. The yeast ubiquitin hydrolase Doa4 acts late in the MVB pathway. It's role is to catalyze deubiquitination of cargo proteins prior to their sorting into the endosomal vesicles. This step...

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