APG8A is involved in cytoplasm to vacuole transport (Cvt) vesicles and autophagosomes formation. It may mediate the delivery of the vesicles and autophagosomes to the vacuole via the microtubule cytoskeleton.
Function:
Involved in cytoplasm to vacuole transport (Cvt) vesicles and autophagosomes formation. May mediate the delivery of the vesicles and autophagosomes to the vacuole via the microtubule cytoskeleton.
Subunit:
Interacts with ATG4b.
Subcellular Location:
Cytoplasmic vesicle ?cvt vesicle membrane; Lipid-anchor. Cytoplasmic vesicle ?autophagosome membrane; Lipid-anchor. Vacuole membrane; Lipid-anchor. Note= Membrane-associated through a lipid anchor.
Post-translational modifications:
The SLCterminal 5 residues are removed by ATG4 to expose Gly-117 at the SLCterminus. This Gly-117 forms then a thioester bond with the 'Cys-558' of ATG7 (E1-like activating enzyme) before being transferred to the 'Cys-258' of ATG3 (the specific E2 conjugating enzyme), in order to be finally amidated with phosphatidylethanolamine. This lipid modification anchors ATG8 to autophagosomes (By similarity).
Similarity:
Belongs to the MAP1 LC3 family.
SWISS:
Q8LEM4
Gene ID:
828287
Database links:
UniProtKB/Swiss-Prot: Q8LEM4.2
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