Vacuolar protein sorting 39 (Vps39) encodes a subunit of the homotypic fusion and vacuole protein sorting (HOPS) complex required for autophagosome maturation.

ADP-ribosylation factor-like protein 8; Required for normal functioning of the late endocytic pathway including lysosome motility and late endosome-lysosome fusion. Not required for the delivery of lysosomal membrane protein-containing vesicles to late endosomes. In larval motorneurons, mediates the anterograde axonal long-range transport of presynaptic lysosome-related vesicles required for presynaptic biogenesis and synaptic function. Essential role in chromosome segregation.

Autophagy-related 8a (Atg8a) encodes a ubiquitin-like protein that is conjugated to phosphatidylethanolamine, and this lipid modification anchors it into the membrane of forming and completed autophagosomes. Atg8a product has roles in autophagosome formation, maintaining neuromuscular function and normal lifespan.

Autophagy-related 8b, isoform A; Microtubule binding; protein tag; ubiquitin protein ligase binding; GABA receptor binding. It is involved in the biological process described with: macroautophagy; autophagosome maturation; cellular response to nitrogen starvation; autophagy of mitochondrion; autophagosome assembly.

Vacuolar protein sorting 11 (Vps11) encodes a Class C Vps core subunit of HOPS, a heterohexameric tethering complex that consists of the products of car, dor, lt, Vps11, Vps16A and Vps39. HOPS tethers autophagosomes or late endosomes with lysosomes to facilitate fusion. The product of Vps11 roles include autophagosome-lysosome fusion, late endosome-lysosome fusion and biosynthetic trafficking to lysosomes.

Vacuolar protein sorting-associated protein 41 homolog; Light (lt) encodes a cellular-protein trafficking protein that forms part of the homotypic fusion and vacuolar protein sorting (HOPS) and class C core vacuole/endosome tethering (CORVET) complexes. It is required for fusion of autophagosomes with lysosomes, endocytic down-regulation of Notch signaling, and eye pigment biogenesis; Belongs to the VPS41 family.

Syntaxin 17, isoform B; Syntaxin 17 (Syx17) encodes a Qa type SNARE protein localizing to ER, mitochondria and autophagosomes. It mediates the fusion of autophagosomes with endosomes and lysosomes by forming a SNARE complex with the products of Snap29 and Vamp7. The product of Syx17 roles include autophagosome clearance and neuromuscular function.

Vacuolar protein sorting-associated protein 18 homolog; Plays a role in vesicle-mediated protein trafficking to lysosomal compartments and in membrane docking/fusion reactions of late endosomes/lysosomes probably as part of the class C core vacuole/endosome tethering (CORVET) complex. In larval neuromuscular junctions, essential for endosomal sorting which traffics old or dysfunctional synaptic vesicle proteins through a degradative endolysosomal route. Required for the biogenesis of eye pigment granules. Required to maintain normal levels of rush, which functions in endosome formation [...]