Trxr1
D. melanogaster
Thioredoxin reductase 1
What the model saw
Gene: Trxr1 Organism: Drosophila melanogaster Known functions: Thioredoxin reductase 1. thioredoxin reductase 1. antioxidant activity. catalytic activity, acting on a protein. flavin adenine dinucleotide binding. glutathione-disulfide reductase (NADPH) activity. oxidoreductase activity. oxidoreductase activity, acting on a sulfur group of donors, NAD(P) as acceptor. protein homodimerization activity. thioredoxin-disulfide reductase (NADPH) activity.
View unredacted entry
Thioredoxin reductase 1. thioredoxin reductase 1. antioxidant activity. catalytic activity, acting on a protein. flavin adenine dinucleotide binding. glutathione-disulfide reductase (NADPH) activity. oxidoreductase activity. oxidoreductase activity, acting on a sulfur group of donors, NAD(P) as acceptor. protein homodimerization activity. thioredoxin-disulfide reductase (NADPH) activity.
Solver output
Thioredoxin reductase 1 (Trxr1) catalyzes the NADPH-dependent reduction of thioredoxin, maintaining it in its reduced (active) form. Reduced thioredoxin is a central hub of the cellular antioxidant network, scavenging reactive oxygen species (ROS) and regenerating peroxiredoxins that detoxify H₂O₂. By sustaining thioredoxin redox cycling, Trxr1 directly limits oxidative damage to proteins, lipids, and DNA—a key driver of mitochondrial dysfunction and aging. The FAD-binding and NADPH-dependent oxidoreductase activities confirm its role in electron transfer within the thioredoxin system. In Drosophila, overexpression of thioredoxin pathway components has been shown to extend lifespan, while loss of function accelerates age-related oxidative damage. The glutathione-disulfide reductase activity further broadens its antioxidant capacity, reinforcing its pro-longevity role.
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 predicts pro_longevity for Trxr1 in Drosophila with high confidence (0.85). The mechanistic reasoning about the thioredoxin/thioredoxin reductase antioxidant system, NADPH-dependent ROS detoxification, and peroxiredoxin regeneration is largely correct and well-articulated. However, the model classifies the mechanism_class as "mitochondrial_dysfunction," which is inaccurate. Trxr1's primary mechanism is antioxidant/redox homeostasis, not mitochondrial dysfunction per se. Mitochondrial dysfunction is a downstream consequence of oxidative stress, not the primary mechanism by which Trxr1 influences longevity. The key pathways listed are appropriate, but the mechanism_class label is a notable mismatch with the actual biology described in the reasoning text itself.
Raw API responses
solver
{
"reasoning": "Thioredoxin reductase 1 (Trxr1) catalyzes the NADPH-dependent reduction of thioredoxin, maintaining it in its reduced (active) form. Reduced thioredoxin is a central hub of the cellular antioxidant network, scavenging reactive oxygen species (ROS) and regenerating peroxiredoxins that detoxify H₂O₂. By sustaining thioredoxin redox cycling, Trxr1 directly limits oxidative damage to proteins, lipids, and DNA—a key driver of mitochondrial dysfunction and aging. The FAD-binding and NADPH-dependent oxidoreductase activities confirm its role in electron transfer within the thioredoxin system. In Drosophila, overexpression of thioredoxin pathway components has been shown to extend lifespan, while loss of function accelerates age-related oxidative damage. The glutathione-disulfide reductase activity further broadens its antioxidant capacity, reinforcing its pro-longevity role.",
"confidence": 0.85,
"key_pathways": [
"Thioredoxin/thioredoxin reductase antioxidant system",
"NADPH-dependent ROS detoxification",
"Peroxiredoxin regeneration and redox homeostasis"
],
"mechanism_class": "mitochondrial_dysfunction",
"longevity_influence": "pro_longevity"
}advisor
{
"notes": "The model correctly predicts pro_longevity for Trxr1 in Drosophila with high confidence (0.85). The mechanistic reasoning about the thioredoxin/thioredoxin reductase antioxidant system, NADPH-dependent ROS detoxification, and peroxiredoxin regeneration is largely correct and well-articulated. However, the model classifies the mechanism_class as \"mitochondrial_dysfunction,\" which is inaccurate. Trxr1's primary mechanism is antioxidant/redox homeostasis, not mitochondrial dysfunction per se. Mitochondrial dysfunction is a downstream consequence of oxidative stress, not the primary mechanism by which Trxr1 influences longevity. The key pathways listed are appropriate, but the mechanism_class label is a notable mismatch with the actual biology described in the reasoning text itself.",
"failure_mode": "right_answer_wrong_reasoning",
"answer_correct": true,
"mechanism_correct": false,
"reasoning_quality": 3,
"ground_truth_questionable": false
}