esg
D. melanogaster
escargot
What the model saw
Gene: esg Organism: Drosophila melanogaster Known functions: escargot. DNA binding. DNA-binding transcription factor activity, RNA polymerase II-specific. DNA-binding transcription repressor activity, RNA polymerase II-specific. RNA polymerase II cis-regulatory region sequence-specific DNA binding. RNA polymerase II transcription regulatory region sequence-specific DNA binding.
View unredacted entry
escargot. DNA binding. DNA-binding transcription factor activity, RNA polymerase II-specific. DNA-binding transcription repressor activity, RNA polymerase II-specific. RNA polymerase II cis-regulatory region sequence-specific DNA binding. RNA polymerase II transcription regulatory region sequence-specific DNA binding.
Solver output
Escargot (esg) is a Snail-family zinc-finger transcription repressor that acts via RNA Pol II-specific DNA binding to suppress target gene expression. In Drosophila, esg is a well-established marker and functional regulator of intestinal stem cells (ISCs) and undifferentiated progenitor cells; it represses differentiation-promoting genes to maintain stem cell identity. Loss of esg leads to premature differentiation and depletion of the ISC pool, accelerating age-related intestinal dysplasia and reducing lifespan. By sustaining the stem cell compartment in the gut and other tissues, esg opposes stem cell exhaustion, a canonical hallmark of aging. Its transcriptional repressor activity thus supports tissue homeostasis and renewal capacity over the organism's lifespan.
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" with 0.72 confidence, but the ground truth is "anti_longevity." The model's reasoning about esg maintaining intestinal stem cells and opposing stem cell exhaustion is plausible in isolation, but it leads to the wrong conclusion. In reality, esg (escargot) has an anti-longevity effect in Drosophila. The model's mechanistic narrative — that loss of esg depletes ISCs and reduces lifespan — is inverted from the actual biology. Evidence suggests that esg activity (or overactivation) can promote tumor-like ISC proliferation and intestinal dysplasia, contributing to aging pathology rather than preventing it. The model constructed a coherent but incorrect mechanistic story and was fairly confident in the wrong direction.
Raw API responses
solver
{
"reasoning": "Escargot (esg) is a Snail-family zinc-finger transcription repressor that acts via RNA Pol II-specific DNA binding to suppress target gene expression. In Drosophila, esg is a well-established marker and functional regulator of intestinal stem cells (ISCs) and undifferentiated progenitor cells; it represses differentiation-promoting genes to maintain stem cell identity. Loss of esg leads to premature differentiation and depletion of the ISC pool, accelerating age-related intestinal dysplasia and reducing lifespan. By sustaining the stem cell compartment in the gut and other tissues, esg opposes stem cell exhaustion, a canonical hallmark of aging. Its transcriptional repressor activity thus supports tissue homeostasis and renewal capacity over the organism's lifespan.",
"confidence": 0.72,
"key_pathways": [
"intestinal stem cell maintenance",
"Notch/Snail transcriptional repression",
"tissue homeostasis and progenitor cell identity"
],
"mechanism_class": "stem_cell_exhaustion",
"longevity_influence": "pro_longevity"
}advisor
{
"notes": "The model predicted \"pro_longevity\" with 0.72 confidence, but the ground truth is \"anti_longevity.\" The model's reasoning about esg maintaining intestinal stem cells and opposing stem cell exhaustion is plausible in isolation, but it leads to the wrong conclusion. In reality, esg (escargot) has an anti-longevity effect in Drosophila. The model's mechanistic narrative — that loss of esg depletes ISCs and reduces lifespan — is inverted from the actual biology. Evidence suggests that esg activity (or overactivation) can promote tumor-like ISC proliferation and intestinal dysplasia, contributing to aging pathology rather than preventing it. The model constructed a coherent but incorrect mechanistic story and was fairly confident in the wrong direction.",
"failure_mode": "confident_wrong",
"answer_correct": false,
"mechanism_correct": false,
"reasoning_quality": 2,
"ground_truth_questionable": false
}