unc-51
C. elegans
Serine/threonine-protein kinase unc-51
What the model saw
Gene: unc-51 Organism: Caenorhabditis elegans Known functions: Serine/threonine-protein kinase unc-51. ATP binding. protein binding. protein kinase activity. protein serine kinase activity. protein serine/threonine kinase activity.
View unredacted entry
Serine/threonine-protein kinase unc-51. ATP binding. protein binding. protein kinase activity. protein serine kinase activity. protein serine/threonine kinase activity.
Solver output
UNC-51 is the C. elegans ortholog of mammalian ULK1/ULK2 (Unc-51-like autophagy activating kinase), a serine/threonine kinase that serves as the master initiating kinase of the autophagy pathway. Upon activation (e.g., under nutrient deprivation or reduced TOR signaling), UNC-51 phosphorylates downstream autophagy components including ATG13 and FIP200/EPG-1, nucleating the pre-autophagosomal structure and initiating autophagosome formation. Autophagy is well-established as a pro-longevity process in C. elegans; loss of autophagy genes (including unc-51) shortens lifespan and blocks the lifespan extension conferred by dietary restriction, reduced insulin/IGF-1 signaling, and mitochondrial perturbations. The ATP-binding and protein serine/threonine kinase activities are fully consistent with ULK1-family function at the apex of the autophagy initiation cascade. Therefore, the normal function of UNC-51 promotes longevity by enabling autophagic flux and proteostatic clearance.
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 predicted "pro_longevity" with high confidence (0.85), but the ground truth is "unclear." The model's reasoning about UNC-51 as the C. elegans ULK1 ortholog and its role in autophagy initiation is mechanistically plausible and largely accurate in terms of biology. However, the model overstates the certainty of UNC-51's longevity influence. In C. elegans, unc-51 mutants have complex phenotypes (including axonal defects, movement defects) beyond just autophagy, and the evidence for its longevity role is apparently not clear-cut enough for GenAge to classify it as definitively pro-longevity. The model's high confidence (0.85) in a "pro_longevity" classification when the actual evidence is "unclear" represents a significant overconfidence failure. The mechanistic reasoning, while biologically reasonable, doesn't account for the complexity of unc-51's pleiotropic roles or the ambiguity in the longevity data.
Raw API responses
solver
{
"reasoning": "UNC-51 is the C. elegans ortholog of mammalian ULK1/ULK2 (Unc-51-like autophagy activating kinase), a serine/threonine kinase that serves as the master initiating kinase of the autophagy pathway. Upon activation (e.g., under nutrient deprivation or reduced TOR signaling), UNC-51 phosphorylates downstream autophagy components including ATG13 and FIP200/EPG-1, nucleating the pre-autophagosomal structure and initiating autophagosome formation. Autophagy is well-established as a pro-longevity process in C. elegans; loss of autophagy genes (including unc-51) shortens lifespan and blocks the lifespan extension conferred by dietary restriction, reduced insulin/IGF-1 signaling, and mitochondrial perturbations. The ATP-binding and protein serine/threonine kinase activities are fully consistent with ULK1-family function at the apex of the autophagy initiation cascade. Therefore, the normal function of UNC-51 promotes longevity by enabling autophagic flux and proteostatic clearance.",
"confidence": 0.85,
"key_pathways": [
"autophagy initiation (ULK1/UNC-51 kinase complex)",
"TOR signaling / nutrient sensing regulation of autophagy",
"insulin/IGF-1 longevity pathway (DAF-2/DAF-16) autophagy requirement"
],
"mechanism_class": "disabled_macroautophagy",
"longevity_influence": "pro_longevity"
}advisor
{
"notes": "The model predicted \"pro_longevity\" with high confidence (0.85), but the ground truth is \"unclear.\" The model's reasoning about UNC-51 as the C. elegans ULK1 ortholog and its role in autophagy initiation is mechanistically plausible and largely accurate in terms of biology. However, the model overstates the certainty of UNC-51's longevity influence. In C. elegans, unc-51 mutants have complex phenotypes (including axonal defects, movement defects) beyond just autophagy, and the evidence for its longevity role is apparently not clear-cut enough for GenAge to classify it as definitively pro-longevity. The model's high confidence (0.85) in a \"pro_longevity\" classification when the actual evidence is \"unclear\" represents a significant overconfidence failure. The mechanistic reasoning, while biologically reasonable, doesn't account for the complexity of unc-51's pleiotropic roles or the ambiguity in the longevity data.",
"failure_mode": "confident_wrong",
"answer_correct": false,
"mechanism_correct": false,
"reasoning_quality": 3,
"ground_truth_questionable": false
}