nfi-1
C. elegans
Nuclear factor I family protein
What the model saw
Gene: nfi-1 Organism: Caenorhabditis elegans Known functions: Nuclear factor I family protein. DNA-binding transcription factor activity. DNA-binding transcription factor activity, RNA polymerase II-specific. RNA polymerase II cis-regulatory region sequence-specific DNA binding. RNA polymerase II transcription regulatory region sequence-specific DNA binding. sequence-specific DNA binding.
View unredacted entry
Nuclear factor I family protein. DNA-binding transcription factor activity. DNA-binding transcription factor activity, RNA polymerase II-specific. RNA polymerase II cis-regulatory region sequence-specific DNA binding. RNA polymerase II transcription regulatory region sequence-specific DNA binding. sequence-specific DNA binding.
Solver output
NFI-1 is a Nuclear Factor I (NFI) family transcription factor that binds cis-regulatory regions and modulates RNA polymerase II-dependent transcription. In C. elegans, NFI family proteins have been linked to regulation of stress response and developmental gene expression programs. As a sequence-specific transcriptional regulator acting at Pol II promoters, nfi-1 is positioned to control expression of longevity-relevant genes, including those in the DAF-16/FOXO or stress-response pathways. NFI transcription factors broadly regulate chromatin accessibility and gene expression programs, placing this gene within the epigenetic alterations hallmark. The pro-longevity prediction is based on the established role of NFI-family factors in maintaining transcriptional homeostasis and their documented positive regulation of stress-protective gene networks in nematodes, though confidence is moderate given the limited direct functional data in aging contexts.
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 nfi-1 in C. elegans. However, the mechanistic reasoning is speculative and not well-grounded. The model classifies the mechanism as "epigenetic_alterations," which is a stretch for a transcription factor — NFI-1 is a sequence-specific DNA-binding transcription factor, not primarily an epigenetic regulator. The reasoning invokes DAF-16/FOXO pathway connections without solid evidence, and the claim about "chromatin accessibility" regulation is loosely justified. The model essentially guessed pro_longevity based on general reasoning about transcription factors and stress response, with moderate confidence (0.55), rather than specific knowledge about nfi-1's role in C. elegans aging. The correct answer was reached, but the mechanistic reasoning is largely speculative and partially incorrect in its classification.
Raw API responses
solver
{
"reasoning": "NFI-1 is a Nuclear Factor I (NFI) family transcription factor that binds cis-regulatory regions and modulates RNA polymerase II-dependent transcription. In C. elegans, NFI family proteins have been linked to regulation of stress response and developmental gene expression programs. As a sequence-specific transcriptional regulator acting at Pol II promoters, nfi-1 is positioned to control expression of longevity-relevant genes, including those in the DAF-16/FOXO or stress-response pathways. NFI transcription factors broadly regulate chromatin accessibility and gene expression programs, placing this gene within the epigenetic alterations hallmark. The pro-longevity prediction is based on the established role of NFI-family factors in maintaining transcriptional homeostasis and their documented positive regulation of stress-protective gene networks in nematodes, though confidence is moderate given the limited direct functional data in aging contexts.",
"confidence": 0.55,
"key_pathways": [
"RNA polymerase II transcriptional regulation",
"stress response gene expression",
"DAF-16/FOXO transcriptional network"
],
"mechanism_class": "epigenetic_alterations",
"longevity_influence": "pro_longevity"
}advisor
{
"notes": "The model correctly predicted pro_longevity for nfi-1 in C. elegans. However, the mechanistic reasoning is speculative and not well-grounded. The model classifies the mechanism as \"epigenetic_alterations,\" which is a stretch for a transcription factor — NFI-1 is a sequence-specific DNA-binding transcription factor, not primarily an epigenetic regulator. The reasoning invokes DAF-16/FOXO pathway connections without solid evidence, and the claim about \"chromatin accessibility\" regulation is loosely justified. The model essentially guessed pro_longevity based on general reasoning about transcription factors and stress response, with moderate confidence (0.55), rather than specific knowledge about nfi-1's role in C. elegans aging. The correct answer was reached, but the mechanistic reasoning is largely speculative and partially incorrect in its classification.",
"failure_mode": "right_answer_wrong_reasoning",
"answer_correct": true,
"mechanism_correct": false,
"reasoning_quality": 2,
"ground_truth_questionable": false
}