cep-1
C. elegans
Transcription factor cep-1
What the model saw
Gene: cep-1 Organism: Caenorhabditis elegans Known functions: Transcription factor cep-1. DNA binding. DNA-binding transcription factor activity. protein homodimerization activity. sequence-specific DNA binding. zinc ion binding.
View unredacted entry
Transcription factor cep-1. DNA binding. DNA-binding transcription factor activity. protein homodimerization activity. sequence-specific DNA binding. zinc ion binding.
Solver output
cep-1 is the C. elegans ortholog of the tumor suppressor p53, functioning as a sequence-specific DNA-binding transcription factor that homodimerizes and coordinates the DNA damage response. Upon genotoxic stress, CEP-1 transcriptionally activates pro-apoptotic targets (e.g., egl-1, ced-13), driving programmed cell death in the germline. While this activity is protective against genomic instability in the short term, chronic or constitutive CEP-1 activity promotes apoptosis and limits stem cell proliferation in the germline, contributing to stem cell exhaustion and reduced reproductive fitness. Studies in C. elegans have shown that loss-of-function of cep-1 can extend lifespan under certain conditions, indicating that its normal activity is net anti-longevity. The zinc ion binding and homodimerization activities are consistent with canonical p53-family transcription factor function, which in the aging context tilts toward promoting cellular elimination over tissue maintenance.
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 identifies cep-1 as anti_longevity with high confidence (0.72). The mechanistic reasoning is excellent: it correctly identifies cep-1 as the C. elegans p53 ortholog, explains its role in DNA damage response, germline apoptosis via egl-1/ced-13, and correctly notes that loss-of-function of cep-1 can extend lifespan. The mechanism class of "cellular_senescence" is slightly imprecise (germline apoptosis/stem cell exhaustion would be more accurate), but the overall mechanistic explanation in the reasoning text is sound and well-supported. The key pathways listed are accurate and relevant.
Raw API responses
solver
{
"reasoning": "cep-1 is the C. elegans ortholog of the tumor suppressor p53, functioning as a sequence-specific DNA-binding transcription factor that homodimerizes and coordinates the DNA damage response. Upon genotoxic stress, CEP-1 transcriptionally activates pro-apoptotic targets (e.g., egl-1, ced-13), driving programmed cell death in the germline. While this activity is protective against genomic instability in the short term, chronic or constitutive CEP-1 activity promotes apoptosis and limits stem cell proliferation in the germline, contributing to stem cell exhaustion and reduced reproductive fitness. Studies in C. elegans have shown that loss-of-function of cep-1 can extend lifespan under certain conditions, indicating that its normal activity is net anti-longevity. The zinc ion binding and homodimerization activities are consistent with canonical p53-family transcription factor function, which in the aging context tilts toward promoting cellular elimination over tissue maintenance.",
"confidence": 0.72,
"key_pathways": [
"p53/CEP-1 DNA damage response",
"germline apoptosis (egl-1/ced-13 axis)",
"stem cell exhaustion via germline cell death"
],
"mechanism_class": "cellular_senescence",
"longevity_influence": "anti_longevity"
}advisor
{
"notes": "The model correctly identifies cep-1 as anti_longevity with high confidence (0.72). The mechanistic reasoning is excellent: it correctly identifies cep-1 as the C. elegans p53 ortholog, explains its role in DNA damage response, germline apoptosis via egl-1/ced-13, and correctly notes that loss-of-function of cep-1 can extend lifespan. The mechanism class of \"cellular_senescence\" is slightly imprecise (germline apoptosis/stem cell exhaustion would be more accurate), but the overall mechanistic explanation in the reasoning text is sound and well-supported. The key pathways listed are accurate and relevant.",
"failure_mode": "correct",
"answer_correct": true,
"mechanism_correct": true,
"reasoning_quality": 5,
"ground_truth_questionable": false
}