(unnamed)
S. pombe
GTPase-activating protein
What the model saw
Gene: Organism: Schizosaccharomyces pombe Known functions: GTPase-activating protein. GTPase activator activity.
View unredacted entry
GTPase-activating protein. GTPase activator activity.
Solver output
GTPase-activating proteins (GAPs) accelerate the intrinsic GTPase activity of small GTPases, converting them from the active GTP-bound to the inactive GDP-bound state. In S. pombe, GAPs can act on multiple GTPase families (Ras, Rho, Rab, Ran, etc.), each with distinct downstream effects on longevity. If this GAP targets Ras or TOR-pathway GTPases, it would suppress pro-growth/pro-aging signaling, potentially extending lifespan — consistent with a pro-longevity role via deregulated nutrient sensing. However, if it targets Rho-family or other GTPases involved in stress responses or autophagy, the effect could be neutral or anti-longevity. Without knowing the specific GTPase substrate, the net effect on lifespan cannot be confidently assigned.
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 "unclear" with low confidence (0.35), while the ground truth is "anti_longevity." The model's reasoning about GAPs potentially suppressing pro-growth/pro-aging signaling (which would suggest pro-longevity) actually contradicts the ground truth of anti_longevity. The model considered the anti_longevity possibility but ultimately chose "unclear." The mechanistic reasoning is partially relevant but misses the mark - the model speculated that if the GAP targets Ras/TOR it would be pro-longevity, but the actual answer is anti_longevity, suggesting the GAP may be acting on a different substrate or pathway. The model's uncertainty was appropriate given limited information, but it failed to commit to the correct answer.
Raw API responses
solver
{
"reasoning": "GTPase-activating proteins (GAPs) accelerate the intrinsic GTPase activity of small GTPases, converting them from the active GTP-bound to the inactive GDP-bound state. In S. pombe, GAPs can act on multiple GTPase families (Ras, Rho, Rab, Ran, etc.), each with distinct downstream effects on longevity. If this GAP targets Ras or TOR-pathway GTPases, it would suppress pro-growth/pro-aging signaling, potentially extending lifespan — consistent with a pro-longevity role via deregulated nutrient sensing. However, if it targets Rho-family or other GTPases involved in stress responses or autophagy, the effect could be neutral or anti-longevity. Without knowing the specific GTPase substrate, the net effect on lifespan cannot be confidently assigned.",
"confidence": 0.35,
"key_pathways": [
"Ras/TOR nutrient sensing",
"small GTPase signaling",
"Rho GTPase regulation"
],
"mechanism_class": "deregulated_nutrient_sensing",
"longevity_influence": "unclear"
}advisor
{
"notes": "The model predicted \"unclear\" with low confidence (0.35), while the ground truth is \"anti_longevity.\" The model's reasoning about GAPs potentially suppressing pro-growth/pro-aging signaling (which would suggest pro-longevity) actually contradicts the ground truth of anti_longevity. The model considered the anti_longevity possibility but ultimately chose \"unclear.\" The mechanistic reasoning is partially relevant but misses the mark - the model speculated that if the GAP targets Ras/TOR it would be pro-longevity, but the actual answer is anti_longevity, suggesting the GAP may be acting on a different substrate or pathway. The model's uncertainty was appropriate given limited information, but it failed to commit to the correct answer.",
"failure_mode": "appropriately_uncertain",
"answer_correct": false,
"mechanism_correct": false,
"reasoning_quality": 2,
"ground_truth_questionable": false
}