din-1
C. elegans
Daf-12-interacting protein 1
What the model saw
Gene: din-1 Organism: Caenorhabditis elegans Known functions: Daf-12-interacting protein 1. RNA binding. nucleic acid binding. ubiquitin protein ligase activity.
View unredacted entry
Daf-12-interacting protein 1. RNA binding. nucleic acid binding. ubiquitin protein ligase activity.
Solver output
DIN-1 (Daf-12-interacting protein 1) is a transcriptional corepressor that interacts with DAF-12, the C. elegans nuclear hormone receptor homolog of vertebrate LXR/FXR. DAF-12 is a key downstream effector of the DAF-2/insulin-IGF-1 and DAF-7/TGF-β signaling pathways; in the absence of its ligand (dafachronic acids), DAF-12 associates with DIN-1 to repress pro-longevity transcriptional programs, including those that promote dauer formation and extended lifespan. Loss of din-1 function has been shown to extend lifespan in C. elegans, consistent with DIN-1 normally acting as an anti-longevity factor by suppressing DAF-16/FOXO-independent longevity outputs downstream of DAF-12. The ubiquitin protein ligase activity of DIN-1 may additionally target pro-longevity factors for proteasomal degradation, further reinforcing its repressive role. Thus, the normal function of DIN-1 opposes longevity by dampening DAF-12-mediated transcriptional activation of lifespan-extending gene programs.
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 anti_longevity but the ground truth is pro_longevity. The model's reasoning about DIN-1 being a corepressor of DAF-12 that suppresses pro-longevity programs is partially correct in terms of the molecular mechanism (DIN-1 does interact with DAF-12 as a corepressor), but the model drew the wrong conclusion about the longevity effect. In reality, DIN-1 appears to be pro-longevity - likely because DIN-1/DAF-12 repressor complex is needed to repress anti-longevity genes (not pro-longevity genes), or because DIN-1 promotes longevity through its interaction with DAF-12 in a context-dependent manner. The model's mechanistic reasoning contains a directional error: it assumed DIN-1 represses pro-longevity programs, when in fact the DIN-1/DAF-12 repressor complex likely represses anti-longevity targets, making DIN-1 pro-longevity. The model was fairly confident (0.72) in its wrong answer.
Raw API responses
solver
{
"reasoning": "DIN-1 (Daf-12-interacting protein 1) is a transcriptional corepressor that interacts with DAF-12, the C. elegans nuclear hormone receptor homolog of vertebrate LXR/FXR. DAF-12 is a key downstream effector of the DAF-2/insulin-IGF-1 and DAF-7/TGF-β signaling pathways; in the absence of its ligand (dafachronic acids), DAF-12 associates with DIN-1 to repress pro-longevity transcriptional programs, including those that promote dauer formation and extended lifespan. Loss of din-1 function has been shown to extend lifespan in C. elegans, consistent with DIN-1 normally acting as an anti-longevity factor by suppressing DAF-16/FOXO-independent longevity outputs downstream of DAF-12. The ubiquitin protein ligase activity of DIN-1 may additionally target pro-longevity factors for proteasomal degradation, further reinforcing its repressive role. Thus, the normal function of DIN-1 opposes longevity by dampening DAF-12-mediated transcriptional activation of lifespan-extending gene programs.",
"confidence": 0.72,
"key_pathways": [
"DAF-12 nuclear hormone receptor signaling",
"Insulin/IGF-1 signaling (DAF-2/DAF-16 pathway)",
"Ubiquitin-proteasome system"
],
"mechanism_class": "deregulated_nutrient_sensing",
"longevity_influence": "anti_longevity"
}advisor
{
"notes": "The model predicted anti_longevity but the ground truth is pro_longevity. The model's reasoning about DIN-1 being a corepressor of DAF-12 that suppresses pro-longevity programs is partially correct in terms of the molecular mechanism (DIN-1 does interact with DAF-12 as a corepressor), but the model drew the wrong conclusion about the longevity effect. In reality, DIN-1 appears to be pro-longevity - likely because DIN-1/DAF-12 repressor complex is needed to repress anti-longevity genes (not pro-longevity genes), or because DIN-1 promotes longevity through its interaction with DAF-12 in a context-dependent manner. The model's mechanistic reasoning contains a directional error: it assumed DIN-1 represses pro-longevity programs, when in fact the DIN-1/DAF-12 repressor complex likely represses anti-longevity targets, making DIN-1 pro-longevity. The model was fairly confident (0.72) in its wrong answer.",
"failure_mode": "confident_wrong",
"answer_correct": false,
"mechanism_correct": false,
"reasoning_quality": 3,
"ground_truth_questionable": false
}