rec-8
C. elegans
Meiotic recombination protein rec-8
What the model saw
Gene: rec-8 Organism: Caenorhabditis elegans Known functions: Meiotic recombination protein rec-8. chromatin binding. damaged DNA binding.
View unredacted entry
Meiotic recombination protein rec-8. chromatin binding. damaged DNA binding.
Solver output
REC-8 is a meiosis-specific cohesin subunit that binds chromatin and damaged DNA, playing a critical role in maintaining sister chromatid cohesion and facilitating accurate meiotic recombination. By ensuring proper double-strand break repair and chromosomal segregation during meiosis, REC-8 suppresses genomic instability — a primary hallmark of aging. Its damaged DNA binding activity further implicates it in the DNA damage response, helping to preserve genome integrity. Loss of cohesin function is associated with increased aneuploidy and DNA damage accumulation, which accelerate aging phenotypes. In C. elegans, proper meiotic fidelity also supports germline integrity, which is linked to somatic longevity signaling.
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 a general assumption that maintaining genomic integrity via meiotic cohesin function would be beneficial for longevity. However, in C. elegans, rec-8 is actually anti-longevity — meaning its loss or reduction extends lifespan. This is consistent with research showing that germline proliferation and meiotic activity can shorten lifespan in C. elegans (the germline-soma tradeoff), and that disrupting meiotic cohesin can extend lifespan. The model's mechanistic reasoning, while internally coherent, is based on a flawed premise and does not account for the well-known germline-longevity tradeoff in C. elegans where germline removal or disruption often extends lifespan. The confidence of 0.55 is relatively low, but the prediction is still wrong.
Raw API responses
solver
{
"reasoning": "REC-8 is a meiosis-specific cohesin subunit that binds chromatin and damaged DNA, playing a critical role in maintaining sister chromatid cohesion and facilitating accurate meiotic recombination. By ensuring proper double-strand break repair and chromosomal segregation during meiosis, REC-8 suppresses genomic instability — a primary hallmark of aging. Its damaged DNA binding activity further implicates it in the DNA damage response, helping to preserve genome integrity. Loss of cohesin function is associated with increased aneuploidy and DNA damage accumulation, which accelerate aging phenotypes. In C. elegans, proper meiotic fidelity also supports germline integrity, which is linked to somatic longevity signaling.",
"confidence": 0.55,
"key_pathways": [
"meiotic recombination and sister chromatid cohesion",
"DNA damage response",
"germline genome integrity maintenance"
],
"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 based on a general assumption that maintaining genomic integrity via meiotic cohesin function would be beneficial for longevity. However, in C. elegans, rec-8 is actually anti-longevity — meaning its loss or reduction extends lifespan. This is consistent with research showing that germline proliferation and meiotic activity can shorten lifespan in C. elegans (the germline-soma tradeoff), and that disrupting meiotic cohesin can extend lifespan. The model's mechanistic reasoning, while internally coherent, is based on a flawed premise and does not account for the well-known germline-longevity tradeoff in C. elegans where germline removal or disruption often extends lifespan. The confidence of 0.55 is relatively low, but the prediction is still wrong.",
"failure_mode": "confident_wrong",
"answer_correct": false,
"mechanism_correct": false,
"reasoning_quality": 2,
"ground_truth_questionable": false
}