Atr
M. musculus
ataxia telangiectasia and Rad3 related
What the model saw
Gene: Atr Organism: Mus musculus Known functions: ataxia telangiectasia and Rad3 related. serine/threonine-protein kinase ATR. MutLalpha complex binding. MutSalpha complex binding. histone H2AXS139 kinase activity. kinase activity. protein binding. protein kinase activity. protein serine kinase activity. protein serine/threonine kinase activity.
View unredacted entry
ataxia telangiectasia and Rad3 related. serine/threonine-protein kinase ATR. MutLalpha complex binding. MutSalpha complex binding. histone H2AXS139 kinase activity. kinase activity. protein binding. protein kinase activity. protein serine kinase activity. protein serine/threonine kinase activity.
Solver output
ATR (Ataxia Telangiectasia and Rad3-Related) is a master kinase of the DNA damage response (DDR), specifically the replication stress response pathway. Its histone H2AX-S139 kinase activity (γH2AX formation) is a critical early step in signaling DNA double-strand breaks and stalled replication forks, recruiting repair machinery. ATR also binds MutLα and MutSα complexes, directly linking it to mismatch repair (MMR) coordination. By phosphorylating downstream targets (e.g., CHK1, RPA), ATR enforces replication fork stability and prevents the accumulation of DNA lesions that drive genomic instability—a primary hallmark of aging. Hypomorphic ATR mutations in mice cause accelerated aging phenotypes (progeroid syndrome), demonstrating that normal ATR function is required to suppress age-associated genomic deterioration and support longevity.
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 ATR in Mus musculus with high confidence (0.82). The mechanistic reasoning is excellent and accurate: ATR is indeed a master kinase of the DNA damage/replication stress response, and hypomorphic ATR mutations in mice do cause progeroid (accelerated aging) phenotypes, demonstrating that ATR is pro-longevity. The model correctly identifies the ATR-CHK1 axis, γH2AX signaling, and MMR coordination as key pathways. The reasoning about genomic instability as a hallmark of aging is well-grounded in the literature. The specific mention of hypomorphic ATR mouse models causing accelerated aging is a key piece of experimental evidence that directly supports the pro_longevity classification.
Raw API responses
solver
{
"reasoning": "ATR (Ataxia Telangiectasia and Rad3-Related) is a master kinase of the DNA damage response (DDR), specifically the replication stress response pathway. Its histone H2AX-S139 kinase activity (γH2AX formation) is a critical early step in signaling DNA double-strand breaks and stalled replication forks, recruiting repair machinery. ATR also binds MutLα and MutSα complexes, directly linking it to mismatch repair (MMR) coordination. By phosphorylating downstream targets (e.g., CHK1, RPA), ATR enforces replication fork stability and prevents the accumulation of DNA lesions that drive genomic instability—a primary hallmark of aging. Hypomorphic ATR mutations in mice cause accelerated aging phenotypes (progeroid syndrome), demonstrating that normal ATR function is required to suppress age-associated genomic deterioration and support longevity.",
"confidence": 0.82,
"key_pathways": [
"DNA damage response / replication stress checkpoint (ATR-CHK1 axis)",
"DNA mismatch repair (MutSα/MutLα complex coordination)",
"γH2AX-mediated DNA double-strand break signaling"
],
"mechanism_class": "genomic_instability",
"longevity_influence": "pro_longevity"
}advisor
{
"notes": "The model correctly predicted pro_longevity for ATR in Mus musculus with high confidence (0.82). The mechanistic reasoning is excellent and accurate: ATR is indeed a master kinase of the DNA damage/replication stress response, and hypomorphic ATR mutations in mice do cause progeroid (accelerated aging) phenotypes, demonstrating that ATR is pro-longevity. The model correctly identifies the ATR-CHK1 axis, γH2AX signaling, and MMR coordination as key pathways. The reasoning about genomic instability as a hallmark of aging is well-grounded in the literature. The specific mention of hypomorphic ATR mouse models causing accelerated aging is a key piece of experimental evidence that directly supports the pro_longevity classification.",
"failure_mode": "correct",
"answer_correct": true,
"mechanism_correct": true,
"reasoning_quality": 5,
"ground_truth_questionable": false
}