dlk-1
C. elegans
Mitogen-activated protein kinase kinase kinase dlk-1
What the model saw
Gene: dlk-1 Organism: Caenorhabditis elegans Known functions: Mitogen-activated protein kinase kinase kinase dlk-1. ATP binding. MAP kinase kinase kinase activity. protein kinase activity. protein serine kinase activity. ubiquitin protein ligase binding.
View unredacted entry
Mitogen-activated protein kinase kinase kinase dlk-1. ATP binding. MAP kinase kinase kinase activity. protein kinase activity. protein serine kinase activity. ubiquitin protein ligase binding.
Solver output
DLK-1 is a MAP3K (mitogen-activated protein kinase kinase kinase) that activates the p38 MAPK stress-response cascade in C. elegans, specifically through the MKK-4/SEK-1 → PMK-1/p38 axis. While p38 signaling can have context-dependent roles, DLK-1 is primarily known as a pro-apoptotic and stress-activated kinase; its activation promotes cellular damage responses and neuronal degeneration pathways rather than repair or survival. Importantly, DLK-1 activity antagonizes DAF-16/FOXO nuclear localization and function indirectly through stress signaling crosstalk, and elevated MAP3K signaling is generally associated with pro-inflammatory and pro-senescence outcomes. The ubiquitin protein ligase binding annotation suggests DLK-1 is regulated by proteasomal degradation (e.g., via RPM-1/PHR1 ubiquitin ligase), and its unchecked kinase activity drives axon degeneration and stress-induced cell death programs. Collectively, DLK-1's role as an activator of stress/damage MAPK cascades positions it as an anti-longevity factor whose normal activity shortens lifespan by promoting cellular damage signaling rather than homeostatic repair.
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 with 0.72 confidence, but the ground truth is pro_longevity. The model's mechanistic reasoning is also incorrect. DLK-1 in C. elegans is known to promote longevity, likely through its role in stress response signaling. The model incorrectly framed DLK-1 as promoting cellular damage and antagonizing DAF-16/FOXO, when in fact DLK-1 activity supports longevity. The model's reasoning about p38 MAPK being pro-senescence and anti-longevity is a misapplication of mammalian biology to C. elegans context. The model correctly identified DLK-1's role in the p38 MAPK cascade and its regulation by RPM-1 ubiquitin ligase, but drew the wrong conclusion about the longevity outcome. The confidence level of 0.72 for an incorrect answer is notably problematic.
Raw API responses
solver
{
"reasoning": "DLK-1 is a MAP3K (mitogen-activated protein kinase kinase kinase) that activates the p38 MAPK stress-response cascade in C. elegans, specifically through the MKK-4/SEK-1 → PMK-1/p38 axis. While p38 signaling can have context-dependent roles, DLK-1 is primarily known as a pro-apoptotic and stress-activated kinase; its activation promotes cellular damage responses and neuronal degeneration pathways rather than repair or survival. Importantly, DLK-1 activity antagonizes DAF-16/FOXO nuclear localization and function indirectly through stress signaling crosstalk, and elevated MAP3K signaling is generally associated with pro-inflammatory and pro-senescence outcomes. The ubiquitin protein ligase binding annotation suggests DLK-1 is regulated by proteasomal degradation (e.g., via RPM-1/PHR1 ubiquitin ligase), and its unchecked kinase activity drives axon degeneration and stress-induced cell death programs. Collectively, DLK-1's role as an activator of stress/damage MAPK cascades positions it as an anti-longevity factor whose normal activity shortens lifespan by promoting cellular damage signaling rather than homeostatic repair.",
"confidence": 0.72,
"key_pathways": [
"DLK-1/MKK-4/PMK-1 p38 MAPK stress signaling cascade",
"Ubiquitin-mediated regulation of MAP3K activity (RPM-1 axis)",
"DAF-16/FOXO longevity pathway antagonism"
],
"mechanism_class": "cellular_senescence",
"longevity_influence": "anti_longevity"
}advisor
{
"notes": "The model predicted anti_longevity with 0.72 confidence, but the ground truth is pro_longevity. The model's mechanistic reasoning is also incorrect. DLK-1 in C. elegans is known to promote longevity, likely through its role in stress response signaling. The model incorrectly framed DLK-1 as promoting cellular damage and antagonizing DAF-16/FOXO, when in fact DLK-1 activity supports longevity. The model's reasoning about p38 MAPK being pro-senescence and anti-longevity is a misapplication of mammalian biology to C. elegans context. The model correctly identified DLK-1's role in the p38 MAPK cascade and its regulation by RPM-1 ubiquitin ligase, but drew the wrong conclusion about the longevity outcome. The confidence level of 0.72 for an incorrect answer is notably problematic.",
"failure_mode": "confident_wrong",
"answer_correct": false,
"mechanism_correct": false,
"reasoning_quality": 2,
"ground_truth_questionable": false
}