atfs-1
C. elegans
Stress activated transcription factor atfs-1
What the model saw
Gene: atfs-1 Organism: Caenorhabditis elegans Known functions: Stress activated transcription factor atfs-1. DNA-binding transcription activator activity, RNA polymerase II-specific. DNA-binding transcription factor activity. DNA-binding transcription factor activity, RNA polymerase II-specific. RNA polymerase II transcription regulatory region sequence-specific DNA binding. enzyme binding. mitochondrial transcription factor activity. protein binding.
View unredacted entry
Stress activated transcription factor atfs-1. DNA-binding transcription activator activity, RNA polymerase II-specific. DNA-binding transcription factor activity. DNA-binding transcription factor activity, RNA polymerase II-specific. RNA polymerase II transcription regulatory region sequence-specific DNA binding. enzyme binding. mitochondrial transcription factor activity. protein binding.
Solver output
ATFS-1 (Activating Transcription Factor associated with Stress-1) is the master transcriptional regulator of the mitochondrial unfolded protein response (UPRmt) in C. elegans. Under mitochondrial stress, ATFS-1 is redirected from mitochondrial import to the nucleus, where it acts as an RNA Pol II-specific transcription activator to upregulate mitochondrial chaperones (e.g., hsp-60, hsp-6) and proteases, restoring mitochondrial proteostasis. Activation of UPRmt via ATFS-1 has been shown to extend lifespan in C. elegans, particularly when mitochondrial stress is mild (hormesis). Its mitochondrial transcription factor activity further supports a direct role in maintaining mitochondrial function and quality control. The UPRmt pathway intersects with other longevity pathways including the IIS and TOR pathways, reinforcing its pro-longevity classification.
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. While the model correctly identifies ATFS-1 as the master regulator of UPRmt and accurately describes its mechanism of action (nuclear translocation under mitochondrial stress, upregulation of chaperones), it draws the wrong conclusion about longevity influence. The key nuance is that while UPRmt activation can extend lifespan, atfs-1 itself is classified as anti_longevity in GenAge, likely because loss-of-function or gain-of-function studies show that atfs-1 activity (particularly constitutive activation) can be detrimental to lifespan, or that the gene's overall effect is to limit longevity. The model acknowledges the hormesis aspect but still confidently (0.78) predicts pro_longevity. The mechanistic description of UPRmt is largely accurate, but the conclusion about longevity direction is wrong. The model's reasoning about mild mitochondrial stress extending lifespan is partially correct but misses that atfs-1 itself has been shown to have anti-longevity effects (e.g., constitutive activation shortens lifespan, or its role in pathogen response/immune evasion by mitochondria can be detrimental).
Raw API responses
solver
{
"reasoning": "ATFS-1 (Activating Transcription Factor associated with Stress-1) is the master transcriptional regulator of the mitochondrial unfolded protein response (UPRmt) in C. elegans. Under mitochondrial stress, ATFS-1 is redirected from mitochondrial import to the nucleus, where it acts as an RNA Pol II-specific transcription activator to upregulate mitochondrial chaperones (e.g., hsp-60, hsp-6) and proteases, restoring mitochondrial proteostasis. Activation of UPRmt via ATFS-1 has been shown to extend lifespan in C. elegans, particularly when mitochondrial stress is mild (hormesis). Its mitochondrial transcription factor activity further supports a direct role in maintaining mitochondrial function and quality control. The UPRmt pathway intersects with other longevity pathways including the IIS and TOR pathways, reinforcing its pro-longevity classification.",
"confidence": 0.78,
"key_pathways": [
"mitochondrial unfolded protein response (UPRmt)",
"mitochondrial proteostasis and quality control",
"stress-responsive transcriptional activation"
],
"mechanism_class": "mitochondrial_dysfunction",
"longevity_influence": "pro_longevity"
}advisor
{
"notes": "The model predicted pro_longevity but the ground truth is anti_longevity. While the model correctly identifies ATFS-1 as the master regulator of UPRmt and accurately describes its mechanism of action (nuclear translocation under mitochondrial stress, upregulation of chaperones), it draws the wrong conclusion about longevity influence. The key nuance is that while UPRmt activation can extend lifespan, atfs-1 itself is classified as anti_longevity in GenAge, likely because loss-of-function or gain-of-function studies show that atfs-1 activity (particularly constitutive activation) can be detrimental to lifespan, or that the gene's overall effect is to limit longevity. The model acknowledges the hormesis aspect but still confidently (0.78) predicts pro_longevity. The mechanistic description of UPRmt is largely accurate, but the conclusion about longevity direction is wrong. The model's reasoning about mild mitochondrial stress extending lifespan is partially correct but misses that atfs-1 itself has been shown to have anti-longevity effects (e.g., constitutive activation shortens lifespan, or its role in pathogen response/immune evasion by mitochondria can be detrimental).",
"failure_mode": "confident_wrong",
"answer_correct": false,
"mechanism_correct": false,
"reasoning_quality": 3,
"ground_truth_questionable": true
}