Mt1
M. musculus
metallothionein 1
What the model saw
Gene: Mt1 Organism: Mus musculus Known functions: metallothionein 1. metallothionein-1. copper ion binding. metal ion binding. zinc ion binding.
View unredacted entry
metallothionein 1. metallothionein-1. copper ion binding. metal ion binding. zinc ion binding.
Solver output
Metallothionein-1 (Mt1) is a small cysteine-rich protein that binds heavy metals (zinc, copper) with high affinity, functioning as a metal ion buffer and antioxidant. By sequestering redox-active metals such as copper, Mt1 limits Fenton-type reactions that generate reactive oxygen species (ROS), thereby reducing oxidative damage to macromolecules. Zinc buffering by Mt1 also modulates zinc-dependent transcription factors (e.g., NF-κB) and inflammatory signaling, dampening chronic low-grade inflammation—a key driver of aging. Mt1 overexpression in mice has been shown to extend lifespan and protect against age-related pathologies including cardiomyopathy and neurodegeneration, while Mt1/Mt2 double-knockout mice show increased oxidative stress and accelerated tissue damage. This places Mt1's primary pro-longevity mechanism at the intersection of metal homeostasis, ROS attenuation, and suppression of inflammaging.
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 Mt1 in Mus musculus. The mechanistic reasoning is largely sound: Mt1's role in metal ion homeostasis, ROS attenuation via sequestration of redox-active metals (copper), and zinc buffering are well-established. The model correctly notes that Mt1 overexpression extends lifespan and that Mt1/Mt2 double-knockouts show increased oxidative stress. The mechanism_class of "chronic_inflammation" is a slight oversimplification—the primary mechanism is more accurately oxidative stress reduction/metal homeostasis, with inflammation being secondary—but the reasoning text itself covers both aspects appropriately. The confidence of 0.72 is reasonable. Overall a strong, well-supported prediction.
Raw API responses
solver
{
"reasoning": "Metallothionein-1 (Mt1) is a small cysteine-rich protein that binds heavy metals (zinc, copper) with high affinity, functioning as a metal ion buffer and antioxidant. By sequestering redox-active metals such as copper, Mt1 limits Fenton-type reactions that generate reactive oxygen species (ROS), thereby reducing oxidative damage to macromolecules. Zinc buffering by Mt1 also modulates zinc-dependent transcription factors (e.g., NF-κB) and inflammatory signaling, dampening chronic low-grade inflammation—a key driver of aging. Mt1 overexpression in mice has been shown to extend lifespan and protect against age-related pathologies including cardiomyopathy and neurodegeneration, while Mt1/Mt2 double-knockout mice show increased oxidative stress and accelerated tissue damage. This places Mt1's primary pro-longevity mechanism at the intersection of metal homeostasis, ROS attenuation, and suppression of inflammaging.",
"confidence": 0.72,
"key_pathways": [
"metal ion homeostasis and ROS attenuation",
"zinc/copper buffering via cysteine-thiol coordination",
"NF-κB-mediated inflammatory signaling suppression"
],
"mechanism_class": "chronic_inflammation",
"longevity_influence": "pro_longevity"
}advisor
{
"notes": "The model correctly predicted pro_longevity for Mt1 in Mus musculus. The mechanistic reasoning is largely sound: Mt1's role in metal ion homeostasis, ROS attenuation via sequestration of redox-active metals (copper), and zinc buffering are well-established. The model correctly notes that Mt1 overexpression extends lifespan and that Mt1/Mt2 double-knockouts show increased oxidative stress. The mechanism_class of \"chronic_inflammation\" is a slight oversimplification—the primary mechanism is more accurately oxidative stress reduction/metal homeostasis, with inflammation being secondary—but the reasoning text itself covers both aspects appropriately. The confidence of 0.72 is reasonable. Overall a strong, well-supported prediction.",
"failure_mode": "correct",
"answer_correct": true,
"mechanism_correct": true,
"reasoning_quality": 4,
"ground_truth_questionable": false
}