epc-1
C. elegans
Enhancer of polycomb-like protein
What the model saw
Gene: epc-1 Organism: Caenorhabditis elegans Known functions: Enhancer of polycomb-like protein. protein-macromolecule adaptor activity.
View unredacted entry
Enhancer of polycomb-like protein. protein-macromolecule adaptor activity.
Solver output
EPC-1 is an Enhancer of Polycomb-like protein, a conserved component of the NuA4/Tip60 histone acetyltransferase complex. This complex regulates chromatin remodeling and histone H4 acetylation, which is critical for maintaining proper epigenetic states during aging. As a protein-macromolecule adaptor, EPC-1 bridges chromatin-modifying enzymes to their histone substrates, facilitating transcriptional regulation of stress response and longevity-associated genes. In C. elegans, the NuA4/Tip60 complex has been linked to the regulation of DAF-16/FOXO target genes and the maintenance of chromatin integrity, both of which are pro-longevity mechanisms. Loss of Polycomb/NuA4 complex integrity is associated with epigenetic drift and accelerated aging, suggesting that normal EPC-1 function supports longevity by preserving chromatin homeostasis.
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 about EPC-1 as part of the NuA4/Tip60 complex and its role in chromatin remodeling is plausible in general terms, but it incorrectly concludes that EPC-1 supports longevity. In reality, epc-1 in C. elegans has an anti-longevity effect, meaning its loss or reduction extends lifespan. The model's logic that "loss of complex integrity leads to accelerated aging" is backwards for this gene. The model showed moderate confidence (0.62) but still got the direction wrong. The mechanistic framing around DAF-16/FOXO and chromatin homeostasis is speculative and not supported by the actual experimental outcome.
Raw API responses
solver
{
"reasoning": "EPC-1 is an Enhancer of Polycomb-like protein, a conserved component of the NuA4/Tip60 histone acetyltransferase complex. This complex regulates chromatin remodeling and histone H4 acetylation, which is critical for maintaining proper epigenetic states during aging. As a protein-macromolecule adaptor, EPC-1 bridges chromatin-modifying enzymes to their histone substrates, facilitating transcriptional regulation of stress response and longevity-associated genes. In C. elegans, the NuA4/Tip60 complex has been linked to the regulation of DAF-16/FOXO target genes and the maintenance of chromatin integrity, both of which are pro-longevity mechanisms. Loss of Polycomb/NuA4 complex integrity is associated with epigenetic drift and accelerated aging, suggesting that normal EPC-1 function supports longevity by preserving chromatin homeostasis.",
"confidence": 0.62,
"key_pathways": [
"NuA4/Tip60 histone acetyltransferase complex",
"DAF-16/FOXO transcriptional regulation",
"chromatin remodeling and histone H4 acetylation"
],
"mechanism_class": "epigenetic_alterations",
"longevity_influence": "pro_longevity"
}advisor
{
"notes": "The model predicted pro_longevity but the ground truth is anti_longevity. The model's reasoning about EPC-1 as part of the NuA4/Tip60 complex and its role in chromatin remodeling is plausible in general terms, but it incorrectly concludes that EPC-1 supports longevity. In reality, epc-1 in C. elegans has an anti-longevity effect, meaning its loss or reduction extends lifespan. The model's logic that \"loss of complex integrity leads to accelerated aging\" is backwards for this gene. The model showed moderate confidence (0.62) but still got the direction wrong. The mechanistic framing around DAF-16/FOXO and chromatin homeostasis is speculative and not supported by the actual experimental outcome.",
"failure_mode": "confident_wrong",
"answer_correct": false,
"mechanism_correct": false,
"reasoning_quality": 2,
"ground_truth_questionable": false
}