ser-4
C. elegans
G-protein coupled receptors family 1 profile domain-containing protein
What the model saw
Gene: ser-4 Organism: Caenorhabditis elegans Known functions: G-protein coupled receptors family 1 profile domain-containing protein. G protein-coupled receptor activity. G protein-coupled serotonin receptor activity. neurotransmitter receptor activity.
View unredacted entry
G-protein coupled receptors family 1 profile domain-containing protein. G protein-coupled receptor activity. G protein-coupled serotonin receptor activity. neurotransmitter receptor activity.
Solver output
ser-4 encodes a G protein-coupled serotonin receptor (family 1/rhodopsin-like GPCR) in C. elegans, mediating serotonergic neurotransmitter signaling. Serotonin signaling in C. elegans is a key neuroendocrine communication pathway that modulates feeding behavior, stress responses, and metabolic rate — all of which intersect with longevity regulation. Serotonin acts upstream of or in parallel with insulin/IGF-1-like signaling and dietary restriction pathways; serotonergic signaling through GPCRs can promote DAF-16/FOXO nuclear localization and stress resistance. Loss of serotonin receptor function has been associated with altered lifespan in C. elegans, and intact intercellular serotonin signaling supports coordinated physiological responses that favor longevity. The primary hallmark implicated is altered intercellular communication, as serotonin is a classical neuromodulator coordinating systemic organismal responses.
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 correctly predicted pro_longevity for ser-4. The mechanistic reasoning is plausible — serotonin GPCR signaling, neuroendocrine communication, and connections to DAF-16/FOXO are reasonable pathways. However, the reasoning is somewhat generic and speculative rather than grounded in specific experimental evidence about ser-4's role in longevity. The model hedges appropriately with 0.55 confidence. The mechanism class (altered_intercellular_communication) is reasonable for a serotonin receptor. Overall, the answer is correct but the reasoning quality is moderate — it's plausible but not strongly evidence-based for this specific gene.
Raw API responses
solver
{
"reasoning": "ser-4 encodes a G protein-coupled serotonin receptor (family 1/rhodopsin-like GPCR) in C. elegans, mediating serotonergic neurotransmitter signaling. Serotonin signaling in C. elegans is a key neuroendocrine communication pathway that modulates feeding behavior, stress responses, and metabolic rate — all of which intersect with longevity regulation. Serotonin acts upstream of or in parallel with insulin/IGF-1-like signaling and dietary restriction pathways; serotonergic signaling through GPCRs can promote DAF-16/FOXO nuclear localization and stress resistance. Loss of serotonin receptor function has been associated with altered lifespan in C. elegans, and intact intercellular serotonin signaling supports coordinated physiological responses that favor longevity. The primary hallmark implicated is altered intercellular communication, as serotonin is a classical neuromodulator coordinating systemic organismal responses.",
"confidence": 0.55,
"key_pathways": [
"serotonin/G protein-coupled receptor signaling",
"neuroendocrine intercellular communication",
"insulin/IGF-1-like signaling (DAF-2/DAF-16 axis)"
],
"mechanism_class": "altered_intercellular_communication",
"longevity_influence": "pro_longevity"
}advisor
{
"notes": "The model correctly predicted pro_longevity for ser-4. The mechanistic reasoning is plausible — serotonin GPCR signaling, neuroendocrine communication, and connections to DAF-16/FOXO are reasonable pathways. However, the reasoning is somewhat generic and speculative rather than grounded in specific experimental evidence about ser-4's role in longevity. The model hedges appropriately with 0.55 confidence. The mechanism class (altered_intercellular_communication) is reasonable for a serotonin receptor. Overall, the answer is correct but the reasoning quality is moderate — it's plausible but not strongly evidence-based for this specific gene.",
"failure_mode": "correct",
"answer_correct": true,
"mechanism_correct": true,
"reasoning_quality": 3,
"ground_truth_questionable": false
}