ceh-18
C. elegans
Homeobox protein ceh-18;POU domain protein
What the model saw
Gene: ceh-18 Organism: Caenorhabditis elegans Known functions: Homeobox protein ceh-18;POU domain protein. DNA binding. DNA-binding transcription factor activity. DNA-binding transcription factor activity, RNA polymerase II-specific. RNA polymerase II cis-regulatory region sequence-specific DNA binding.
View unredacted entry
Homeobox protein ceh-18;POU domain protein. DNA binding. DNA-binding transcription factor activity. DNA-binding transcription factor activity, RNA polymerase II-specific. RNA polymerase II cis-regulatory region sequence-specific DNA binding.
Solver output
CEH-18 is a POU-domain homeodomain transcription factor that binds RNA Pol II cis-regulatory elements to regulate gene expression programs. In C. elegans, POU-class transcription factors like CEH-18 are known to regulate the maintenance of somatic cell identity and stress-response gene networks, including those governing dauer formation and reproductive aging. CEH-18 has been specifically linked to the regulation of oocyte quality and the pace of reproductive aging; loss of ceh-18 accelerates oocyte deterioration and shortens lifespan, suggesting its normal function preserves cellular integrity and delays age-related decline. This places its primary mechanism in the maintenance of cell identity/differentiation state, most closely aligned with the cellular senescence hallmark. Its transcriptional targets likely include genes in proteostasis and stress-response pathways that collectively buffer against age-associated damage.
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 claims that "loss of ceh-18 accelerates oocyte deterioration and shortens lifespan," which would support a pro_longevity classification. However, the GenAge database classifies ceh-18 as anti_longevity, meaning loss of ceh-18 actually extends lifespan (or its overexpression shortens it). The model's mechanistic reasoning is inverted relative to the actual biology. The model showed moderate confidence (0.65) in the wrong direction. The reasoning about oocyte quality and reproductive aging shows some domain knowledge but the conclusion about the direction of effect is incorrect.
Raw API responses
solver
{
"reasoning": "CEH-18 is a POU-domain homeodomain transcription factor that binds RNA Pol II cis-regulatory elements to regulate gene expression programs. In C. elegans, POU-class transcription factors like CEH-18 are known to regulate the maintenance of somatic cell identity and stress-response gene networks, including those governing dauer formation and reproductive aging. CEH-18 has been specifically linked to the regulation of oocyte quality and the pace of reproductive aging; loss of ceh-18 accelerates oocyte deterioration and shortens lifespan, suggesting its normal function preserves cellular integrity and delays age-related decline. This places its primary mechanism in the maintenance of cell identity/differentiation state, most closely aligned with the cellular senescence hallmark. Its transcriptional targets likely include genes in proteostasis and stress-response pathways that collectively buffer against age-associated damage.",
"confidence": 0.65,
"key_pathways": [
"POU homeodomain transcriptional regulation",
"oocyte quality maintenance and reproductive aging",
"somatic cell identity and stress-response gene networks"
],
"mechanism_class": "cellular_senescence",
"longevity_influence": "pro_longevity"
}advisor
{
"notes": "The model predicted pro_longevity but the ground truth is anti_longevity. The model's reasoning claims that \"loss of ceh-18 accelerates oocyte deterioration and shortens lifespan,\" which would support a pro_longevity classification. However, the GenAge database classifies ceh-18 as anti_longevity, meaning loss of ceh-18 actually extends lifespan (or its overexpression shortens it). The model's mechanistic reasoning is inverted relative to the actual biology. The model showed moderate confidence (0.65) in the wrong direction. The reasoning about oocyte quality and reproductive aging shows some domain knowledge but the conclusion about the direction of effect is incorrect.",
"failure_mode": "confident_wrong",
"answer_correct": false,
"mechanism_correct": false,
"reasoning_quality": 2,
"ground_truth_questionable": false
}