vps-16
C. elegans
Vacuolar protein sorting-associated protein 16 homolog
What the model saw
Gene: vps-16 Organism: Caenorhabditis elegans Known functions: Vacuolar protein sorting-associated protein 16 homolog. actin binding.
View unredacted entry
Vacuolar protein sorting-associated protein 16 homolog. actin binding.
Solver output
VPS-16 is a core subunit of the HOPS (Homotypic fusion and Protein Sorting) tethering complex, which is essential for late endosome/lysosome fusion and proper vacuolar protein sorting. Functional HOPS complex activity is required for autophagosome-lysosome fusion, a critical step in macroautophagy completion. In C. elegans, intact lysosomal trafficking and autophagy flux are well-established pro-longevity mechanisms, particularly downstream of dietary restriction and insulin/IGF-1 signaling pathways. The actin-binding activity of VPS-16 likely supports vesicle tethering and membrane fusion dynamics at the lysosome. Loss of vps-16 function impairs autophagic flux and lysosomal degradation capacity, which is associated with shortened lifespan, indicating that its normal function promotes longevity.
GenAge curators classify each gene's normal function as promoting (Pro-Longevity) or opposing (Anti-Longevity) longevity, based on synthesis across studies. Loss-of-function effects can vary from this depending on the manipulation.
Advisor judgment
The model correctly predicted pro_longevity for vps-16 in C. elegans. The mechanistic reasoning is sound: VPS-16 as a HOPS complex subunit involved in lysosomal fusion and autophagy flux is well-established, and the connection to longevity through autophagic flux is biologically plausible and consistent with the literature. The model appropriately noted that loss of vps-16 impairs autophagic flux and lysosomal degradation, leading to shortened lifespan. The confidence level of 0.62 is reasonable given the specificity of the gene. The mechanism class "disabled_macroautophagy" is a bit oddly named (it seems to describe what happens when the gene is lost, rather than the gene's normal function class), but the underlying reasoning is correct.
Raw API responses
solver
{
"reasoning": "VPS-16 is a core subunit of the HOPS (Homotypic fusion and Protein Sorting) tethering complex, which is essential for late endosome/lysosome fusion and proper vacuolar protein sorting. Functional HOPS complex activity is required for autophagosome-lysosome fusion, a critical step in macroautophagy completion. In C. elegans, intact lysosomal trafficking and autophagy flux are well-established pro-longevity mechanisms, particularly downstream of dietary restriction and insulin/IGF-1 signaling pathways. The actin-binding activity of VPS-16 likely supports vesicle tethering and membrane fusion dynamics at the lysosome. Loss of vps-16 function impairs autophagic flux and lysosomal degradation capacity, which is associated with shortened lifespan, indicating that its normal function promotes longevity.",
"confidence": 0.62,
"key_pathways": [
"HOPS complex / lysosomal tethering",
"autophagosome-lysosome fusion",
"vacuolar protein sorting"
],
"mechanism_class": "disabled_macroautophagy",
"longevity_influence": "pro_longevity"
}advisor
{
"notes": "The model correctly predicted pro_longevity for vps-16 in C. elegans. The mechanistic reasoning is sound: VPS-16 as a HOPS complex subunit involved in lysosomal fusion and autophagy flux is well-established, and the connection to longevity through autophagic flux is biologically plausible and consistent with the literature. The model appropriately noted that loss of vps-16 impairs autophagic flux and lysosomal degradation, leading to shortened lifespan. The confidence level of 0.62 is reasonable given the specificity of the gene. The mechanism class \"disabled_macroautophagy\" is a bit oddly named (it seems to describe what happens when the gene is lost, rather than the gene's normal function class), but the underlying reasoning is correct.",
"failure_mode": "correct",
"answer_correct": true,
"mechanism_correct": true,
"reasoning_quality": 4,
"ground_truth_questionable": false
}