dlat-1
C. elegans
Dihydrolipoyllysine-residue acetyltransferase component of pyruvate dehydrogenase complex, mitochondrial
What the model saw
Gene: dlat-1 Organism: Caenorhabditis elegans Known functions: Dihydrolipoyllysine-residue acetyltransferase component of pyruvate dehydrogenase complex, mitochondrial. acyltransferase activity. dihydrolipoyllysine-residue acetyltransferase activity. protein binding.
View unredacted entry
Dihydrolipoyllysine-residue acetyltransferase component of pyruvate dehydrogenase complex, mitochondrial. acyltransferase activity. dihydrolipoyllysine-residue acetyltransferase activity. protein binding.
Solver output
dlat-1 encodes the E2 core component (dihydrolipoyllysine-residue acetyltransferase) of the mitochondrial pyruvate dehydrogenase complex (PDC), which catalyzes the oxidative decarboxylation of pyruvate to acetyl-CoA, directly linking glycolysis to the TCA cycle and mitochondrial OXPHOS. Proper PDC activity is essential for efficient mitochondrial energy metabolism; loss of dlat-1 function would impair acetyl-CoA production, reduce TCA cycle flux, and compromise mitochondrial ATP generation. However, in C. elegans, mild mitochondrial impairment can paradoxically extend lifespan via mitohormesis (e.g., isp-1, clk-1 mutants), so the direction is nuanced. Nevertheless, the normal function of dlat-1—sustaining robust mitochondrial metabolic flux—is canonically associated with healthy mitochondrial function and organismal fitness, placing it in the pro-longevity category when functioning properly, as severe PDC deficiency leads to metabolic disease and shortened lifespan rather than extension.
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 but the ground truth is anti_longevity. The model's reasoning is internally contradictory - it acknowledges that mild mitochondrial impairment can extend lifespan via mitohormesis in C. elegans, but then concludes dlat-1 is pro_longevity because "severe PDC deficiency leads to metabolic disease and shortened lifespan." The ground truth indicates dlat-1 is anti_longevity, meaning loss of dlat-1 function actually extends lifespan (consistent with the mitohormesis pathway the model mentioned but then dismissed). The model correctly identified the relevant mechanism (mitochondrial dysfunction/mitohormesis) but drew the wrong conclusion about the direction of effect. The model's confidence of 0.62 is moderate but still wrong. The mechanistic reasoning about mitohormesis was actually pointing in the right direction but was overridden by an incorrect final judgment.
Raw API responses
solver
{
"reasoning": "dlat-1 encodes the E2 core component (dihydrolipoyllysine-residue acetyltransferase) of the mitochondrial pyruvate dehydrogenase complex (PDC), which catalyzes the oxidative decarboxylation of pyruvate to acetyl-CoA, directly linking glycolysis to the TCA cycle and mitochondrial OXPHOS. Proper PDC activity is essential for efficient mitochondrial energy metabolism; loss of dlat-1 function would impair acetyl-CoA production, reduce TCA cycle flux, and compromise mitochondrial ATP generation. However, in C. elegans, mild mitochondrial impairment can paradoxically extend lifespan via mitohormesis (e.g., isp-1, clk-1 mutants), so the direction is nuanced. Nevertheless, the normal function of dlat-1—sustaining robust mitochondrial metabolic flux—is canonically associated with healthy mitochondrial function and organismal fitness, placing it in the pro-longevity category when functioning properly, as severe PDC deficiency leads to metabolic disease and shortened lifespan rather than extension.",
"confidence": 0.62,
"key_pathways": [
"Pyruvate dehydrogenase complex (PDC) / acetyl-CoA biosynthesis",
"TCA cycle / mitochondrial OXPHOS",
"Mitohormesis signaling"
],
"mechanism_class": "mitochondrial_dysfunction",
"longevity_influence": "pro_longevity"
}advisor
{
"notes": "The model predicted pro_longevity but the ground truth is anti_longevity. The model's reasoning is internally contradictory - it acknowledges that mild mitochondrial impairment can extend lifespan via mitohormesis in C. elegans, but then concludes dlat-1 is pro_longevity because \"severe PDC deficiency leads to metabolic disease and shortened lifespan.\" The ground truth indicates dlat-1 is anti_longevity, meaning loss of dlat-1 function actually extends lifespan (consistent with the mitohormesis pathway the model mentioned but then dismissed). The model correctly identified the relevant mechanism (mitochondrial dysfunction/mitohormesis) but drew the wrong conclusion about the direction of effect. The model's confidence of 0.62 is moderate but still wrong. The mechanistic reasoning about mitohormesis was actually pointing in the right direction but was overridden by an incorrect final judgment.",
"failure_mode": "confident_wrong",
"answer_correct": false,
"mechanism_correct": false,
"reasoning_quality": 2,
"ground_truth_questionable": false
}