daw
D. melanogaster
dawdle
What the model saw
Gene: daw Organism: Drosophila melanogaster Known functions: dawdle. cytokine activity. growth factor activity. hormone activity. receptor ligand activity.
View unredacted entry
dawdle. cytokine activity. growth factor activity. hormone activity. receptor ligand activity.
Solver output
Dawdle (daw) is a TGF-β/Activin-like ligand in Drosophila that signals through the Activin pathway (via the type I receptor Baboon/Babo), which modulates insulin/IGF signaling and nutrient-sensing pathways. Activin signaling through daw has been shown to regulate insulin sensitivity and metabolic homeostasis; reduced or dysregulated Activin signaling impairs systemic metabolic coordination. As a receptor ligand with cytokine and growth factor activity, daw acts as an intercellular communication molecule that fine-tunes IIS (insulin/IGF-1 signaling) output, a central axis of longevity regulation in flies. Proper daw-mediated Activin signaling supports metabolic balance and proteostasis, and loss of daw leads to metabolic defects consistent with shortened lifespan. Its role as a positive modulator of insulin sensitivity places it in the pro-longevity category under the deregulated nutrient-sensing hallmark.
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 daw's role in TGF-β/Activin signaling and IIS modulation is partially correct in terms of pathway identification, but the model incorrectly concluded that daw promotes longevity. In reality, daw (dawdle) acts as an anti-longevity gene - its activity reduces lifespan rather than extending it. The model's mechanistic reasoning that "loss of daw leads to metabolic defects consistent with shortened lifespan" is inverted from the actual biology; loss of daw (or reduced daw signaling) would be expected to extend lifespan if daw is anti-longevity. The model had moderate confidence (0.65) but got the direction wrong. The reasoning about daw being a "positive modulator of insulin sensitivity" that supports longevity is incorrect - the actual relationship appears to be that daw signaling reduces lifespan, making it anti-longevity.
Raw API responses
solver
{
"reasoning": "Dawdle (daw) is a TGF-β/Activin-like ligand in Drosophila that signals through the Activin pathway (via the type I receptor Baboon/Babo), which modulates insulin/IGF signaling and nutrient-sensing pathways. Activin signaling through daw has been shown to regulate insulin sensitivity and metabolic homeostasis; reduced or dysregulated Activin signaling impairs systemic metabolic coordination. As a receptor ligand with cytokine and growth factor activity, daw acts as an intercellular communication molecule that fine-tunes IIS (insulin/IGF-1 signaling) output, a central axis of longevity regulation in flies. Proper daw-mediated Activin signaling supports metabolic balance and proteostasis, and loss of daw leads to metabolic defects consistent with shortened lifespan. Its role as a positive modulator of insulin sensitivity places it in the pro-longevity category under the deregulated nutrient-sensing hallmark.",
"confidence": 0.65,
"key_pathways": [
"TGF-β/Activin signaling",
"Insulin/IGF-1 signaling (IIS)",
"Intercellular cytokine/hormone communication"
],
"mechanism_class": "deregulated_nutrient_sensing",
"longevity_influence": "pro_longevity"
}advisor
{
"notes": "The model predicted pro_longevity but the ground truth is anti_longevity. The model's reasoning about daw's role in TGF-β/Activin signaling and IIS modulation is partially correct in terms of pathway identification, but the model incorrectly concluded that daw promotes longevity. In reality, daw (dawdle) acts as an anti-longevity gene - its activity reduces lifespan rather than extending it. The model's mechanistic reasoning that \"loss of daw leads to metabolic defects consistent with shortened lifespan\" is inverted from the actual biology; loss of daw (or reduced daw signaling) would be expected to extend lifespan if daw is anti-longevity. The model had moderate confidence (0.65) but got the direction wrong. The reasoning about daw being a \"positive modulator of insulin sensitivity\" that supports longevity is incorrect - the actual relationship appears to be that daw signaling reduces lifespan, making it anti-longevity.",
"failure_mode": "confident_wrong",
"answer_correct": false,
"mechanism_correct": false,
"reasoning_quality": 2,
"ground_truth_questionable": false
}