atp-4
C. elegans
ATP synthase-coupling factor 6, mitochondrial
What the model saw
Gene: atp-4 Organism: Caenorhabditis elegans Known functions: ATP synthase-coupling factor 6, mitochondrial. proton transmembrane transporter activity.
View unredacted entry
ATP synthase-coupling factor 6, mitochondrial. proton transmembrane transporter activity.
Solver output
atp-4 encodes the ATP synthase coupling factor 6 (subunit f), a peripheral stalk component of the mitochondrial F0F1-ATP synthase complex that facilitates proton translocation across the inner mitochondrial membrane coupled to ATP synthesis. Paradoxically, in C. elegans, partial loss-of-function of mitochondrial ATP synthase subunits (including related subunits like asb-2/atp-3) has been shown to extend lifespan by reducing mitochondrial membrane potential and ATP production, triggering a mitohormetic response and activating stress-response pathways such as the mitochondrial unfolded protein response (UPRmt). Reduced proton-coupled ATP synthesis lowers reactive oxygen species production and shifts metabolic state in a manner that promotes longevity. However, the normal (wild-type) function of atp-4 is to support efficient oxidative phosphorylation, which if anything maintains high ATP flux — a state associated with normal, non-extended lifespan. The pro-longevity prediction here reflects the well-established C. elegans paradigm where mild mitochondrial impairment (including of ATP synthase) extends lifespan, meaning the gene's normal activity is subtly anti-longevity in this context, but given the complexity, the gene's role in maintaining mitochondrial coupling is the primary mechanistic anchor.
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 identifies the mitohormesis/mitochondrial dysfunction paradigm in C. elegans, where loss of ATP synthase subunits can extend lifespan. However, it arrives at the wrong final answer. The ground truth is "anti_longevity," meaning atp-4's normal function promotes longevity (or its loss shortens lifespan). The model predicted "pro_longevity" (meaning loss of atp-4 extends lifespan), which is incorrect. The model's reasoning is internally contradictory — it acknowledges the gene's normal function supports efficient oxidative phosphorylation but then confusingly labels it "pro_longevity" based on the mitohormesis paradigm. The mechanistic framework is partially correct (ATP synthase, mitochondrial function), but the model misapplied it to reach the wrong conclusion. The confidence of 0.62 is moderate but still wrong.
Raw API responses
solver
{
"reasoning": "atp-4 encodes the ATP synthase coupling factor 6 (subunit f), a peripheral stalk component of the mitochondrial F0F1-ATP synthase complex that facilitates proton translocation across the inner mitochondrial membrane coupled to ATP synthesis. Paradoxically, in C. elegans, partial loss-of-function of mitochondrial ATP synthase subunits (including related subunits like asb-2/atp-3) has been shown to extend lifespan by reducing mitochondrial membrane potential and ATP production, triggering a mitohormetic response and activating stress-response pathways such as the mitochondrial unfolded protein response (UPRmt). Reduced proton-coupled ATP synthesis lowers reactive oxygen species production and shifts metabolic state in a manner that promotes longevity. However, the normal (wild-type) function of atp-4 is to support efficient oxidative phosphorylation, which if anything maintains high ATP flux — a state associated with normal, non-extended lifespan. The pro-longevity prediction here reflects the well-established C. elegans paradigm where mild mitochondrial impairment (including of ATP synthase) extends lifespan, meaning the gene's normal activity is subtly anti-longevity in this context, but given the complexity, the gene's role in maintaining mitochondrial coupling is the primary mechanistic anchor.",
"confidence": 0.62,
"key_pathways": [
"mitochondrial oxidative phosphorylation (F0F1-ATP synthase)",
"mitochondrial unfolded protein response (UPRmt)",
"mitohormesis / ROS signaling"
],
"mechanism_class": "mitochondrial_dysfunction",
"longevity_influence": "pro_longevity"
}advisor
{
"notes": "The model correctly identifies the mitohormesis/mitochondrial dysfunction paradigm in C. elegans, where loss of ATP synthase subunits can extend lifespan. However, it arrives at the wrong final answer. The ground truth is \"anti_longevity,\" meaning atp-4's normal function promotes longevity (or its loss shortens lifespan). The model predicted \"pro_longevity\" (meaning loss of atp-4 extends lifespan), which is incorrect. The model's reasoning is internally contradictory — it acknowledges the gene's normal function supports efficient oxidative phosphorylation but then confusingly labels it \"pro_longevity\" based on the mitohormesis paradigm. The mechanistic framework is partially correct (ATP synthase, mitochondrial function), but the model misapplied it to reach the wrong conclusion. The confidence of 0.62 is moderate but still wrong.",
"failure_mode": "confident_wrong",
"answer_correct": false,
"mechanism_correct": true,
"reasoning_quality": 3,
"ground_truth_questionable": false
}