Trx2
D. melanogaster
Thioredoxin 2
What the model saw
Gene: Trx2 Organism: Drosophila melanogaster Known functions: Thioredoxin 2. thioredoxin 2. disulfide oxidoreductase activity. glutathione disulfide oxidoreductase activity. protein-disulfide reductase activity.
View unredacted entry
Thioredoxin 2. thioredoxin 2. disulfide oxidoreductase activity. glutathione disulfide oxidoreductase activity. protein-disulfide reductase activity.
Solver output
Thioredoxin 2 (Trx2) is a mitochondria-localized thioredoxin that catalyzes disulfide oxidoreductase and protein-disulfide reductase reactions, maintaining the redox balance of mitochondrial proteins. By reducing oxidized protein thiols and regenerating peroxiredoxins, Trx2 directly neutralizes mitochondrial reactive oxygen species (ROS) and prevents oxidative damage to the electron transport chain. Overexpression of thioredoxins in Drosophila and other model organisms is well-established to extend lifespan by reducing mitochondrial oxidative stress, a key driver of aging. Its glutathione disulfide oxidoreductase activity further links it to the glutathione antioxidant system, amplifying its cytoprotective role. Loss of Trx2 function would be expected to accelerate mitochondrial ROS accumulation and shorten lifespan, confirming 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 predicted pro_longevity for Trx2 in Drosophila melanogaster with high confidence (0.87). The mechanistic reasoning is sound: Trx2 is indeed a mitochondria-localized thioredoxin involved in redox homeostasis and ROS detoxification, and overexpression of thioredoxins is well-documented to extend lifespan in Drosophila. The mechanism class "mitochondrial_dysfunction" is slightly imprecise (it's more about preventing mitochondrial dysfunction via antioxidant activity rather than mitochondrial dysfunction per se), but the overall mechanistic explanation is accurate and well-reasoned. The key pathways identified are appropriate. Minor deduction for the mechanism class label being somewhat misleading.
Raw API responses
solver
{
"reasoning": "Thioredoxin 2 (Trx2) is a mitochondria-localized thioredoxin that catalyzes disulfide oxidoreductase and protein-disulfide reductase reactions, maintaining the redox balance of mitochondrial proteins. By reducing oxidized protein thiols and regenerating peroxiredoxins, Trx2 directly neutralizes mitochondrial reactive oxygen species (ROS) and prevents oxidative damage to the electron transport chain. Overexpression of thioredoxins in Drosophila and other model organisms is well-established to extend lifespan by reducing mitochondrial oxidative stress, a key driver of aging. Its glutathione disulfide oxidoreductase activity further links it to the glutathione antioxidant system, amplifying its cytoprotective role. Loss of Trx2 function would be expected to accelerate mitochondrial ROS accumulation and shorten lifespan, confirming its pro-longevity role.",
"confidence": 0.87,
"key_pathways": [
"mitochondrial thioredoxin/peroxiredoxin antioxidant system",
"ROS detoxification and redox homeostasis",
"glutathione-dependent oxidoreduction"
],
"mechanism_class": "mitochondrial_dysfunction",
"longevity_influence": "pro_longevity"
}advisor
{
"notes": "The model correctly predicted pro_longevity for Trx2 in Drosophila melanogaster with high confidence (0.87). The mechanistic reasoning is sound: Trx2 is indeed a mitochondria-localized thioredoxin involved in redox homeostasis and ROS detoxification, and overexpression of thioredoxins is well-documented to extend lifespan in Drosophila. The mechanism class \"mitochondrial_dysfunction\" is slightly imprecise (it's more about preventing mitochondrial dysfunction via antioxidant activity rather than mitochondrial dysfunction per se), but the overall mechanistic explanation is accurate and well-reasoned. The key pathways identified are appropriate. Minor deduction for the mechanism class label being somewhat misleading.",
"failure_mode": "correct",
"answer_correct": true,
"mechanism_correct": true,
"reasoning_quality": 4,
"ground_truth_questionable": false
}