bub-3
C. elegans
Mitotic checkpoint protein bub-3
What the model saw
Gene: bub-3 Organism: Caenorhabditis elegans Known functions: Mitotic checkpoint protein bub-3. protein binding. ubiquitin binding.
View unredacted entry
Mitotic checkpoint protein bub-3. protein binding. ubiquitin binding.
Solver output
BUB-3 is the C. elegans ortholog of the spindle assembly checkpoint (SAC) component BUB3, which functions as part of the mitotic checkpoint complex (MCC) to delay anaphase onset until all kinetochores are properly attached to spindle microtubules. By ensuring accurate chromosome segregation, BUB-3 prevents aneuploidy and chromosomal instability — a key driver of genomic instability, one of the primary hallmarks of aging. Its ubiquitin binding activity may also contribute to regulating APC/C-mediated proteolysis during mitotic exit. Loss of SAC fidelity leads to accumulation of genomic errors over time, accelerating cellular aging and tissue dysfunction. Therefore, the normal function of bub-3 in maintaining mitotic fidelity is expected to be pro-longevity.
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 logically coherent but leads to the wrong conclusion. The model assumed that because BUB-3 maintains mitotic fidelity and prevents genomic instability, it should be pro-longevity. However, in C. elegans, bub-3 is classified as anti_longevity, meaning its loss or reduction actually extends lifespan. This is consistent with findings in C. elegans where spindle assembly checkpoint components can paradoxically limit lifespan, possibly through mechanisms related to cell cycle arrest, apoptosis signaling, or other aging-related pathways that differ from the straightforward genomic stability narrative. The model's reasoning quality is moderate - it correctly identifies the gene's molecular function but fails to account for the counterintuitive experimental findings in C. elegans longevity studies. The confidence of 0.65 is somewhat appropriate given the uncertainty, but the prediction is still wrong.
Raw API responses
solver
{
"reasoning": "BUB-3 is the C. elegans ortholog of the spindle assembly checkpoint (SAC) component BUB3, which functions as part of the mitotic checkpoint complex (MCC) to delay anaphase onset until all kinetochores are properly attached to spindle microtubules. By ensuring accurate chromosome segregation, BUB-3 prevents aneuploidy and chromosomal instability — a key driver of genomic instability, one of the primary hallmarks of aging. Its ubiquitin binding activity may also contribute to regulating APC/C-mediated proteolysis during mitotic exit. Loss of SAC fidelity leads to accumulation of genomic errors over time, accelerating cellular aging and tissue dysfunction. Therefore, the normal function of bub-3 in maintaining mitotic fidelity is expected to be pro-longevity.",
"confidence": 0.65,
"key_pathways": [
"spindle assembly checkpoint (SAC)",
"mitotic checkpoint complex (MCC)",
"APC/C-mediated proteolysis"
],
"mechanism_class": "genomic_instability",
"longevity_influence": "pro_longevity"
}advisor
{
"notes": "The model predicted pro_longevity but the ground truth is anti_longevity. The model's reasoning is logically coherent but leads to the wrong conclusion. The model assumed that because BUB-3 maintains mitotic fidelity and prevents genomic instability, it should be pro-longevity. However, in C. elegans, bub-3 is classified as anti_longevity, meaning its loss or reduction actually extends lifespan. This is consistent with findings in C. elegans where spindle assembly checkpoint components can paradoxically limit lifespan, possibly through mechanisms related to cell cycle arrest, apoptosis signaling, or other aging-related pathways that differ from the straightforward genomic stability narrative. The model's reasoning quality is moderate - it correctly identifies the gene's molecular function but fails to account for the counterintuitive experimental findings in C. elegans longevity studies. The confidence of 0.65 is somewhat appropriate given the uncertainty, but the prediction is still wrong.",
"failure_mode": "confident_wrong",
"answer_correct": false,
"mechanism_correct": false,
"reasoning_quality": 3,
"ground_truth_questionable": false
}