cdc-25.3
C. elegans
M-phase inducer phosphatase cdc-25.3
What the model saw
Gene: cdc-25.3 Organism: Caenorhabditis elegans Known functions: M-phase inducer phosphatase cdc-25.3. phosphoprotein phosphatase activity. protein tyrosine phosphatase activity.
View unredacted entry
M-phase inducer phosphatase cdc-25.3. phosphoprotein phosphatase activity. protein tyrosine phosphatase activity.
Solver output
CDC-25.3 is a Cdc25-family dual-specificity phosphatase that activates cyclin-dependent kinases (CDKs) by removing inhibitory phosphorylations on Tyr and Thr residues, thereby driving entry into M-phase. Promotion of cell cycle progression via CDK activation is associated with increased proliferative pressure, which in the context of aging can accelerate cellular damage accumulation and reduce the fidelity of cell cycle checkpoints. In C. elegans, hyperactivation of mitotic entry pathways tends to oppose longevity, as restraint of cell cycle progression (e.g., through DAF-16/FOXO or checkpoint kinase pathways) is generally pro-longevity. By dephosphorylating and activating CDK1/CDK2 complexes, cdc-25.3 antagonizes checkpoint-mediated cell cycle arrest, potentially reducing the organism's ability to pause and repair genomic damage, linking it to genomic instability and reduced lifespan.
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 anti_longevity for cdc-25.3. However, the mechanistic reasoning is speculative and not well-grounded. The model invokes "cellular senescence" as the mechanism class, which is not a well-established concept in C. elegans (a post-mitotic organism in adulthood). The reasoning about "proliferative pressure," "genomic instability," and "checkpoint bypass" is generic and not supported by specific experimental evidence for cdc-25.3 in C. elegans. The actual mechanism by which cdc-25.3 influences longevity in C. elegans is likely related to its role in germline proliferation (CDC-25 phosphatases are known to regulate germline stem cell proliferation in C. elegans, and germline signaling is a well-established longevity pathway), but the model doesn't specifically invoke this. The confidence of 0.65 is reasonable given the uncertainty. The answer is correct but the mechanistic reasoning is largely speculative and partially incorrect in framing.
Raw API responses
solver
{
"reasoning": "CDC-25.3 is a Cdc25-family dual-specificity phosphatase that activates cyclin-dependent kinases (CDKs) by removing inhibitory phosphorylations on Tyr and Thr residues, thereby driving entry into M-phase. Promotion of cell cycle progression via CDK activation is associated with increased proliferative pressure, which in the context of aging can accelerate cellular damage accumulation and reduce the fidelity of cell cycle checkpoints. In C. elegans, hyperactivation of mitotic entry pathways tends to oppose longevity, as restraint of cell cycle progression (e.g., through DAF-16/FOXO or checkpoint kinase pathways) is generally pro-longevity. By dephosphorylating and activating CDK1/CDK2 complexes, cdc-25.3 antagonizes checkpoint-mediated cell cycle arrest, potentially reducing the organism's ability to pause and repair genomic damage, linking it to genomic instability and reduced lifespan.",
"confidence": 0.65,
"key_pathways": [
"CDK1/Cyclin B activation (M-phase entry)",
"DNA damage checkpoint bypass",
"Cell cycle progression via Cdc25 phosphatase activity"
],
"mechanism_class": "cellular_senescence",
"longevity_influence": "anti_longevity"
}advisor
{
"notes": "The model correctly predicted anti_longevity for cdc-25.3. However, the mechanistic reasoning is speculative and not well-grounded. The model invokes \"cellular senescence\" as the mechanism class, which is not a well-established concept in C. elegans (a post-mitotic organism in adulthood). The reasoning about \"proliferative pressure,\" \"genomic instability,\" and \"checkpoint bypass\" is generic and not supported by specific experimental evidence for cdc-25.3 in C. elegans. The actual mechanism by which cdc-25.3 influences longevity in C. elegans is likely related to its role in germline proliferation (CDC-25 phosphatases are known to regulate germline stem cell proliferation in C. elegans, and germline signaling is a well-established longevity pathway), but the model doesn't specifically invoke this. The confidence of 0.65 is reasonable given the uncertainty. The answer is correct but the mechanistic reasoning is largely speculative and partially incorrect in framing.",
"failure_mode": "right_answer_wrong_reasoning",
"answer_correct": true,
"mechanism_correct": false,
"reasoning_quality": 2,
"ground_truth_questionable": false
}