tps3
S. pombe
alpha,alpha-trehalose-phosphate synthase
What the model saw
Gene: tps3 Organism: Schizosaccharomyces pombe Known functions: alpha,alpha-trehalose-phosphate synthase. alpha,alpha-trehalose-phosphate synthase (UDP-forming) activity. catalytic activity.
View unredacted entry
alpha,alpha-trehalose-phosphate synthase. alpha,alpha-trehalose-phosphate synthase (UDP-forming) activity. catalytic activity.
Solver output
tps3 encodes an alpha,alpha-trehalose-phosphate synthase (UDP-forming), which catalyzes the first committed step in trehalose biosynthesis: the transfer of glucose from UDP-glucose to glucose-6-phosphate to form trehalose-6-phosphate, which is subsequently dephosphorylated to trehalose. Trehalose is a well-established chemical chaperone that stabilizes proteins and membranes under stress conditions, directly supporting proteostasis. In yeast and other organisms, trehalose accumulation is strongly associated with stress resistance, including heat shock, oxidative stress, and desiccation tolerance — all of which are linked to extended lifespan. Enhanced trehalose synthesis reduces protein aggregation and misfolding, a hallmark of aging associated with loss of proteostasis. Genetic evidence in S. cerevisiae and other fungi shows that trehalose pathway activity correlates with longevity, and its disruption accelerates aging phenotypes.
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 based on the general role of trehalose as a chemical chaperone and stress protectant, extrapolating from S. cerevisiae data. However, tps3 in S. pombe is actually anti-longevity, meaning its activity shortens lifespan. The model made a plausible but incorrect inference by assuming that because trehalose biosynthesis is generally beneficial in other organisms/contexts, tps3 must be pro-longevity. The model was fairly confident (0.72) in its wrong answer. The mechanistic reasoning about trehalose's general role is not wrong per se, but the conclusion about tps3's specific effect on longevity in S. pombe is incorrect, and the model failed to consider that this particular synthase subunit might have anti-longevity effects (e.g., perhaps excessive trehalose or pathway imbalance is detrimental, or tps3 has a specific regulatory role that differs from the general pathway function).
Raw API responses
solver
{
"reasoning": "tps3 encodes an alpha,alpha-trehalose-phosphate synthase (UDP-forming), which catalyzes the first committed step in trehalose biosynthesis: the transfer of glucose from UDP-glucose to glucose-6-phosphate to form trehalose-6-phosphate, which is subsequently dephosphorylated to trehalose. Trehalose is a well-established chemical chaperone that stabilizes proteins and membranes under stress conditions, directly supporting proteostasis. In yeast and other organisms, trehalose accumulation is strongly associated with stress resistance, including heat shock, oxidative stress, and desiccation tolerance — all of which are linked to extended lifespan. Enhanced trehalose synthesis reduces protein aggregation and misfolding, a hallmark of aging associated with loss of proteostasis. Genetic evidence in S. cerevisiae and other fungi shows that trehalose pathway activity correlates with longevity, and its disruption accelerates aging phenotypes.",
"confidence": 0.72,
"key_pathways": [
"trehalose biosynthesis pathway",
"protein homeostasis / chemical chaperone activity",
"stress response and cytoprotection"
],
"mechanism_class": "loss_of_proteostasis",
"longevity_influence": "pro_longevity"
}advisor
{
"notes": "The model predicted pro_longevity but the ground truth is anti_longevity. The model's reasoning is based on the general role of trehalose as a chemical chaperone and stress protectant, extrapolating from S. cerevisiae data. However, tps3 in S. pombe is actually anti-longevity, meaning its activity shortens lifespan. The model made a plausible but incorrect inference by assuming that because trehalose biosynthesis is generally beneficial in other organisms/contexts, tps3 must be pro-longevity. The model was fairly confident (0.72) in its wrong answer. The mechanistic reasoning about trehalose's general role is not wrong per se, but the conclusion about tps3's specific effect on longevity in S. pombe is incorrect, and the model failed to consider that this particular synthase subunit might have anti-longevity effects (e.g., perhaps excessive trehalose or pathway imbalance is detrimental, or tps3 has a specific regulatory role that differs from the general pathway function).",
"failure_mode": "confident_wrong",
"answer_correct": false,
"mechanism_correct": false,
"reasoning_quality": 2,
"ground_truth_questionable": false
}