elo-1
C. elegans
Long chain fatty acid elongase 1
What the model saw
Gene: elo-1 Organism: Caenorhabditis elegans Known functions: Long chain fatty acid elongase 1. fatty acid elongase activity.
View unredacted entry
Long chain fatty acid elongase 1. fatty acid elongase activity.
Solver output
ELO-1 is a long-chain fatty acid elongase that catalyzes the extension of fatty acid carbon chains, contributing to the composition of membrane phospholipids and signaling lipids in C. elegans. Fatty acid composition, particularly the ratio of polyunsaturated fatty acids (PUFAs) to saturated/monounsaturated fatty acids, is known to influence lifespan in C. elegans through membrane fluidity and lipid signaling. However, the direction of ELO-1's specific effect on longevity is ambiguous: elongation of certain PUFAs (e.g., toward longer omega-6 or omega-3 species) can be pro-longevity by supporting membrane integrity and reducing lipotoxicity, but elongation toward very long-chain saturated or monounsaturated fatty acids can be neutral or detrimental. The molecular function annotation alone (fatty acid elongase activity) does not specify the substrate preference or downstream lipid products with sufficient resolution to confidently assign a pro- or anti-longevity role. Additionally, fatty acid elongation intersects with nutrient sensing pathways (e.g., mTOR, insulin/IGF-1) but the directionality of ELO-1's contribution remains unresolved without additional context.
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" while the ground truth is "anti_longevity." The model correctly identified ELO-1's role as a fatty acid elongase and discussed relevant pathways (membrane lipid composition, PUFA metabolism), but failed to commit to a direction. The actual anti-longevity role of elo-1 in C. elegans is established in the literature - loss of elo-1 function extends lifespan, suggesting the gene normally limits longevity. The model's reasoning about ambiguity in direction is understandable given limited information, but it missed the known finding that fatty acid elongation toward certain lipid species (particularly in the context of elo-1 specifically) has an anti-longevity effect. The mechanism class of "deregulated_nutrient_sensing" is also not the most accurate framing - the effect is more directly through lipid composition changes rather than nutrient sensing pathway deregulation. The model was appropriately uncertain rather than confidently wrong, but the answer is still incorrect.
Raw API responses
solver
{
"reasoning": "ELO-1 is a long-chain fatty acid elongase that catalyzes the extension of fatty acid carbon chains, contributing to the composition of membrane phospholipids and signaling lipids in C. elegans. Fatty acid composition, particularly the ratio of polyunsaturated fatty acids (PUFAs) to saturated/monounsaturated fatty acids, is known to influence lifespan in C. elegans through membrane fluidity and lipid signaling. However, the direction of ELO-1's specific effect on longevity is ambiguous: elongation of certain PUFAs (e.g., toward longer omega-6 or omega-3 species) can be pro-longevity by supporting membrane integrity and reducing lipotoxicity, but elongation toward very long-chain saturated or monounsaturated fatty acids can be neutral or detrimental. The molecular function annotation alone (fatty acid elongase activity) does not specify the substrate preference or downstream lipid products with sufficient resolution to confidently assign a pro- or anti-longevity role. Additionally, fatty acid elongation intersects with nutrient sensing pathways (e.g., mTOR, insulin/IGF-1) but the directionality of ELO-1's contribution remains unresolved without additional context.",
"confidence": 0.42,
"key_pathways": [
"fatty acid elongation",
"membrane lipid composition",
"lipid metabolism / nutrient sensing"
],
"mechanism_class": "deregulated_nutrient_sensing",
"longevity_influence": "unclear"
}advisor
{
"notes": "The model predicted \"unclear\" while the ground truth is \"anti_longevity.\" The model correctly identified ELO-1's role as a fatty acid elongase and discussed relevant pathways (membrane lipid composition, PUFA metabolism), but failed to commit to a direction. The actual anti-longevity role of elo-1 in C. elegans is established in the literature - loss of elo-1 function extends lifespan, suggesting the gene normally limits longevity. The model's reasoning about ambiguity in direction is understandable given limited information, but it missed the known finding that fatty acid elongation toward certain lipid species (particularly in the context of elo-1 specifically) has an anti-longevity effect. The mechanism class of \"deregulated_nutrient_sensing\" is also not the most accurate framing - the effect is more directly through lipid composition changes rather than nutrient sensing pathway deregulation. The model was appropriately uncertain rather than confidently wrong, but the answer is still incorrect.",
"failure_mode": "appropriately_uncertain",
"answer_correct": false,
"mechanism_correct": false,
"reasoning_quality": 2,
"ground_truth_questionable": false
}