Reference: Sakamaki JI and Mizushima N (2023) Conjugation of the ubiquitin family proteins to phospholipids. Autophagy 19(4):1361-1362

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Abstract


Conjugation of Atg8-family proteins to phosphatidylethanolamine (PE) is important for autophagosome formation. PE conjugation has been thought to be specific to Atg8 among the ubiquitin-family proteins. However, this dogma has not been experimentally verified. Our recent study revealed that ubiquitin is also conjugated to PE on endosomes and the vacuole (or lysosomes). Other ubiquitin-like proteins, such as NEDD8 and ISG15, also covalently bind to phospholipids. We propose that conjugation to phospholipids could be a common feature of the ubiquitin family.

Reference Type
Journal Article | Research Support, Non-U.S. Gov't
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Sakamaki JI, Mizushima N
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