Autophagy is a major intracellular catabolic pathway governed by the sequential actions of proteins encoded by autophagy-related genes (Atg). ATG9, the only transmembrane protein involved in this process, regulates phospholipid translocation to autophagosomes during the early phases of autophagy. In mammals, two Atg9 isoforms have been reported: Atg9a and Atg9b. In this study, we examined whether the molecular and cellular characteristics of these two isoforms differed in mice.
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Lee et al. (2024) studied this question.
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