let-765
C. elegans
Protein strawberry notch homolog
What the model saw
Gene: let-765 Organism: Caenorhabditis elegans Known functions: Protein strawberry notch homolog. chromatin DNA binding. histone binding.
View unredacted entry
Protein strawberry notch homolog. chromatin DNA binding. histone binding.
Solver output
let-765 encodes a homolog of Strawberry Notch (SBN), a conserved chromatin-associated factor with chromatin DNA binding and histone binding activities. Strawberry Notch homologs function as transcriptional regulators that modulate chromatin accessibility and gene expression programs, often acting downstream of Notch signaling. In the context of aging, proper maintenance of chromatin states and histone-associated regulatory functions is critical for preserving transcriptional fidelity and preventing age-associated epigenetic drift. Histone-binding proteins that support chromatin organization typically counteract epigenetic alterations—a hallmark of aging—thereby promoting longevity. The Notch pathway itself has been linked to stem cell maintenance and stress responses in C. elegans, further supporting a pro-longevity role for this chromatin regulator.
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 let-765. The mechanistic reasoning is plausible and grounded in the known functions (chromatin DNA binding, histone binding) of the Strawberry Notch homolog. The model reasonably invokes epigenetic regulation and chromatin maintenance as pro-longevity mechanisms. However, the reasoning is somewhat generic — it relies on general principles about chromatin regulators and aging rather than specific experimental evidence about let-765 in C. elegans. The confidence (0.55) is appropriately modest given the limited information provided. Overall, the prediction is correct with reasonable but not highly specific mechanistic reasoning.
Raw API responses
solver
{
"reasoning": "let-765 encodes a homolog of Strawberry Notch (SBN), a conserved chromatin-associated factor with chromatin DNA binding and histone binding activities. Strawberry Notch homologs function as transcriptional regulators that modulate chromatin accessibility and gene expression programs, often acting downstream of Notch signaling. In the context of aging, proper maintenance of chromatin states and histone-associated regulatory functions is critical for preserving transcriptional fidelity and preventing age-associated epigenetic drift. Histone-binding proteins that support chromatin organization typically counteract epigenetic alterations—a hallmark of aging—thereby promoting longevity. The Notch pathway itself has been linked to stem cell maintenance and stress responses in C. elegans, further supporting a pro-longevity role for this chromatin regulator.",
"confidence": 0.55,
"key_pathways": [
"Notch signaling pathway",
"chromatin remodeling and epigenetic regulation",
"histone-mediated transcriptional control"
],
"mechanism_class": "epigenetic_alterations",
"longevity_influence": "pro_longevity"
}advisor
{
"notes": "The model correctly predicted pro_longevity for let-765. The mechanistic reasoning is plausible and grounded in the known functions (chromatin DNA binding, histone binding) of the Strawberry Notch homolog. The model reasonably invokes epigenetic regulation and chromatin maintenance as pro-longevity mechanisms. However, the reasoning is somewhat generic — it relies on general principles about chromatin regulators and aging rather than specific experimental evidence about let-765 in C. elegans. The confidence (0.55) is appropriately modest given the limited information provided. Overall, the prediction is correct with reasonable but not highly specific mechanistic reasoning.",
"failure_mode": "correct",
"answer_correct": true,
"mechanism_correct": true,
"reasoning_quality": 3,
"ground_truth_questionable": false
}