glp-1
C. elegans
glp-1/Notch intracellular domain
What the model saw
Gene: glp-1 Organism: Caenorhabditis elegans Known functions: glp-1/Notch intracellular domain. RNA polymerase II-specific DNA-binding transcription factor binding. calcium ion binding. transcription coactivator activity. transmembrane signaling receptor activity.
View unredacted entry
glp-1/Notch intracellular domain. RNA polymerase II-specific DNA-binding transcription factor binding. calcium ion binding. transcription coactivator activity. transmembrane signaling receptor activity.
Solver output
glp-1 encodes the C. elegans Notch receptor, which functions as a transmembrane signaling receptor and transcription coactivator (via its intracellular domain binding RNA Pol II transcription factors). In the germline, GLP-1/Notch signaling from the distal tip cell maintains germline stem cell (GSC) proliferation. Critically, loss-of-function mutations in glp-1 that ablate the germline stem cell pool extend lifespan in C. elegans by derepressing DAF-16/FOXO and activating lipid metabolism pathways, indicating that the normal pro-proliferative function of GLP-1 in GSCs is anti-longevity. However, glp-1 also has somatic roles in early embryonic patterning and in intestinal/neuronal Notch signaling that may be pro-longevity. The dominant, well-characterized longevity phenotype is that GLP-1 activity in the germline promotes GSC self-renewal at the expense of longevity, placing its primary influence as anti-longevity through stem cell exhaustion and germline signaling to the soma. The calcium ion binding annotation is consistent with Notch receptor function and does not alter this interpretation.
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 identified the mechanism: GLP-1/Notch signaling maintains germline stem cells, and loss-of-function mutations in glp-1 extend lifespan by derepressing DAF-16/FOXO. The model even explicitly states "the normal pro-proliferative function of GLP-1 in GSCs is anti-longevity" and "GLP-1 activity in the germline promotes GSC self-renewal at the expense of longevity, placing its primary influence as anti-longevity." However, the model then contradicted itself by outputting "pro_longevity" as the final prediction despite its own reasoning clearly pointing to anti_longevity. The ground truth is anti_longevity. The mechanism described is largely correct, but the final answer is wrong. This is a case where the model's reasoning was sound but the conclusion drawn was the opposite of what the reasoning supported.
Raw API responses
solver
{
"reasoning": "glp-1 encodes the C. elegans Notch receptor, which functions as a transmembrane signaling receptor and transcription coactivator (via its intracellular domain binding RNA Pol II transcription factors). In the germline, GLP-1/Notch signaling from the distal tip cell maintains germline stem cell (GSC) proliferation. Critically, loss-of-function mutations in glp-1 that ablate the germline stem cell pool extend lifespan in C. elegans by derepressing DAF-16/FOXO and activating lipid metabolism pathways, indicating that the normal pro-proliferative function of GLP-1 in GSCs is anti-longevity. However, glp-1 also has somatic roles in early embryonic patterning and in intestinal/neuronal Notch signaling that may be pro-longevity. The dominant, well-characterized longevity phenotype is that GLP-1 activity in the germline promotes GSC self-renewal at the expense of longevity, placing its primary influence as anti-longevity through stem cell exhaustion and germline signaling to the soma. The calcium ion binding annotation is consistent with Notch receptor function and does not alter this interpretation.",
"confidence": 0.72,
"key_pathways": [
"GLP-1/Notch germline stem cell signaling",
"DAF-16/FOXO longevity pathway",
"germline-to-soma lipid signaling"
],
"mechanism_class": "stem_cell_exhaustion",
"longevity_influence": "pro_longevity"
}advisor
{
"notes": "The model correctly identified the mechanism: GLP-1/Notch signaling maintains germline stem cells, and loss-of-function mutations in glp-1 extend lifespan by derepressing DAF-16/FOXO. The model even explicitly states \"the normal pro-proliferative function of GLP-1 in GSCs is anti-longevity\" and \"GLP-1 activity in the germline promotes GSC self-renewal at the expense of longevity, placing its primary influence as anti-longevity.\" However, the model then contradicted itself by outputting \"pro_longevity\" as the final prediction despite its own reasoning clearly pointing to anti_longevity. The ground truth is anti_longevity. The mechanism described is largely correct, but the final answer is wrong. This is a case where the model's reasoning was sound but the conclusion drawn was the opposite of what the reasoning supported.",
"failure_mode": "right_answer_wrong_reasoning",
"answer_correct": false,
"mechanism_correct": true,
"reasoning_quality": 4,
"ground_truth_questionable": false
}