atg-7
C. elegans
Ubiquitin-like modifier-activating enzyme ATG7
What the model saw
Gene: atg-7 Organism: Caenorhabditis elegans Known functions: Ubiquitin-like modifier-activating enzyme ATG7. Atg12 activating enzyme activity. Atg8 activating enzyme activity. ubiquitin-like modifier activating enzyme activity.
View unredacted entry
Ubiquitin-like modifier-activating enzyme ATG7. Atg12 activating enzyme activity. Atg8 activating enzyme activity. ubiquitin-like modifier activating enzyme activity.
Solver output
ATG-7 is the E1-like activating enzyme essential for two ubiquitin-like conjugation cascades central to autophagosome biogenesis: it activates ATG12 (which conjugates to ATG5 to form the ATG12–ATG5–ATG16 complex) and ATG8/LC3 (which is lipidated to phosphatidylethanolamine on the autophagosomal membrane). Both conjugation events are indispensable for autophagy initiation and membrane elongation. In C. elegans, macroautophagy is required for lifespan extension downstream of multiple longevity pathways including DAF-2/insulin signaling, dietary restriction, and mitochondrial stress; loss of atg-7 suppresses these longevity phenotypes. By enabling autophagic flux, ATG-7 promotes clearance of damaged proteins and organelles, directly opposing proteotoxic stress and cellular senescence that accumulate with age.
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 very high confidence (0.95), but the ground truth is "unclear." The mechanistic reasoning about ATG-7's role in autophagy (activating ATG12 and ATG8 conjugation cascades, requirement for autophagy in longevity pathways) is largely correct and well-articulated. However, the model failed to account for the complexity and ambiguity in the literature regarding atg-7's role in C. elegans longevity. The GenAge database classifies it as "unclear," suggesting conflicting or insufficient evidence. The model was overconfident in assigning a definitive pro-longevity role when the evidence is actually ambiguous. While autophagy is generally considered pro-longevity, the specific role of atg-7 in C. elegans lifespan appears to be more nuanced than the model acknowledged.
Raw API responses
solver
{
"reasoning": "ATG-7 is the E1-like activating enzyme essential for two ubiquitin-like conjugation cascades central to autophagosome biogenesis: it activates ATG12 (which conjugates to ATG5 to form the ATG12–ATG5–ATG16 complex) and ATG8/LC3 (which is lipidated to phosphatidylethanolamine on the autophagosomal membrane). Both conjugation events are indispensable for autophagy initiation and membrane elongation. In C. elegans, macroautophagy is required for lifespan extension downstream of multiple longevity pathways including DAF-2/insulin signaling, dietary restriction, and mitochondrial stress; loss of atg-7 suppresses these longevity phenotypes. By enabling autophagic flux, ATG-7 promotes clearance of damaged proteins and organelles, directly opposing proteotoxic stress and cellular senescence that accumulate with age.",
"confidence": 0.95,
"key_pathways": [
"macroautophagy / autophagosome biogenesis (ATG8 and ATG12 conjugation cascades)",
"DAF-2/IIS longevity pathway (autophagy requirement)",
"dietary restriction-induced longevity"
],
"mechanism_class": "disabled_macroautophagy",
"longevity_influence": "pro_longevity"
}advisor
{
"notes": "The model predicted \"pro_longevity\" with very high confidence (0.95), but the ground truth is \"unclear.\" The mechanistic reasoning about ATG-7's role in autophagy (activating ATG12 and ATG8 conjugation cascades, requirement for autophagy in longevity pathways) is largely correct and well-articulated. However, the model failed to account for the complexity and ambiguity in the literature regarding atg-7's role in C. elegans longevity. The GenAge database classifies it as \"unclear,\" suggesting conflicting or insufficient evidence. The model was overconfident in assigning a definitive pro-longevity role when the evidence is actually ambiguous. While autophagy is generally considered pro-longevity, the specific role of atg-7 in C. elegans lifespan appears to be more nuanced than the model acknowledged.",
"failure_mode": "confident_wrong",
"answer_correct": false,
"mechanism_correct": true,
"reasoning_quality": 3,
"ground_truth_questionable": false
}