dgk-5
C. elegans
Diacylglycerol kinase;Putative diacylglycerol kinase K06A1.6
What the model saw
Gene: dgk-5 Organism: Caenorhabditis elegans Known functions: Diacylglycerol kinase;Putative diacylglycerol kinase K06A1.6. ATP-dependent diacylglycerol kinase activity. kinase activity.
View unredacted entry
Diacylglycerol kinase;Putative diacylglycerol kinase K06A1.6. ATP-dependent diacylglycerol kinase activity. kinase activity.
Solver output
Diacylglycerol kinase (DGK) phosphorylates diacylglycerol (DAG) to produce phosphatidic acid (PA), thereby attenuating DAG signaling. In C. elegans, elevated DAG levels activate protein kinase C (PKC/tpa-1) and promote signaling through the Gq/EGL-30 pathway, which antagonizes longevity. By converting DAG to PA, dgk-5 dampens DAG-driven PKC activation and reduces pro-aging neuroendocrine signaling. This is consistent with the known role of dgk-1 (a related DAG kinase) in C. elegans, where loss of DAG kinase activity increases DAG and shortens lifespan via enhanced PKC/Gq signaling. Additionally, PA produced by DGK can feed into lipid metabolic pathways that intersect with nutrient sensing (e.g., mTOR regulation), further supporting a pro-longevity role for dgk-5 through restraint of DAG-mediated signaling cascades.
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 DAG kinase biology is plausible in general terms (DGKs convert DAG to PA, dampening PKC/Gq signaling), but it applied this logic incorrectly to dgk-5. The model even cited dgk-1 as a reference point, noting that loss of DAG kinase activity increases DAG and shortens lifespan - but then concluded dgk-5 would be pro-longevity, which contradicts the ground truth showing dgk-5 is anti_longevity. The model's reasoning about dgk-1 actually points in the opposite direction from its conclusion about dgk-5. The model had moderate confidence (0.65) but got both the answer and the mechanistic application wrong. dgk-5 being anti_longevity suggests that dgk-5 activity (converting DAG to PA) actually reduces longevity, possibly because PA production or DAG depletion in this specific context is harmful, or because dgk-5 has a different role than dgk-1.
Raw API responses
solver
{
"reasoning": "Diacylglycerol kinase (DGK) phosphorylates diacylglycerol (DAG) to produce phosphatidic acid (PA), thereby attenuating DAG signaling. In C. elegans, elevated DAG levels activate protein kinase C (PKC/tpa-1) and promote signaling through the Gq/EGL-30 pathway, which antagonizes longevity. By converting DAG to PA, dgk-5 dampens DAG-driven PKC activation and reduces pro-aging neuroendocrine signaling. This is consistent with the known role of dgk-1 (a related DAG kinase) in C. elegans, where loss of DAG kinase activity increases DAG and shortens lifespan via enhanced PKC/Gq signaling. Additionally, PA produced by DGK can feed into lipid metabolic pathways that intersect with nutrient sensing (e.g., mTOR regulation), further supporting a pro-longevity role for dgk-5 through restraint of DAG-mediated signaling cascades.",
"confidence": 0.65,
"key_pathways": [
"DAG/PKC signaling attenuation",
"Gq/EGL-30 neuroendocrine pathway",
"phosphatidic acid lipid metabolism"
],
"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 DAG kinase biology is plausible in general terms (DGKs convert DAG to PA, dampening PKC/Gq signaling), but it applied this logic incorrectly to dgk-5. The model even cited dgk-1 as a reference point, noting that loss of DAG kinase activity increases DAG and shortens lifespan - but then concluded dgk-5 would be pro-longevity, which contradicts the ground truth showing dgk-5 is anti_longevity. The model's reasoning about dgk-1 actually points in the opposite direction from its conclusion about dgk-5. The model had moderate confidence (0.65) but got both the answer and the mechanistic application wrong. dgk-5 being anti_longevity suggests that dgk-5 activity (converting DAG to PA) actually reduces longevity, possibly because PA production or DAG depletion in this specific context is harmful, or because dgk-5 has a different role than dgk-1.",
"failure_mode": "confident_wrong",
"answer_correct": false,
"mechanism_correct": false,
"reasoning_quality": 2,
"ground_truth_questionable": false
}