smg-1
C. elegans
Serine/threonine-protein kinase smg-1
What the model saw
Gene: smg-1 Organism: Caenorhabditis elegans Known functions: Serine/threonine-protein kinase smg-1. protein serine kinase activity. protein serine/threonine kinase activity.
View unredacted entry
Serine/threonine-protein kinase smg-1. protein serine kinase activity. protein serine/threonine kinase activity.
Solver output
SMG-1 is a PI3K-related serine/threonine protein kinase that is a core component of the nonsense-mediated mRNA decay (NMD) pathway, phosphorylating UPF1/SMG-2 to initiate degradation of aberrant transcripts containing premature stop codons. By eliminating faulty mRNAs, SMG-1 maintains transcriptome fidelity and proteostasis, reducing the accumulation of truncated or aberrant proteins that could be toxic. In C. elegans, NMD pathway components including smg-1 have been shown to influence lifespan, with loss of NMD function generally reducing longevity. Additionally, SMG-1 is an ATM/ATR-related kinase involved in DNA damage response signaling, contributing to genomic stability. These combined roles in RNA surveillance and genome integrity maintenance are consistent with a pro-longevity function.
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 pro_longevity but the ground truth is anti_longevity. The model's reasoning about SMG-1's role in NMD and DNA damage response is partially correct mechanistically, but it drew the wrong conclusion about the direction of longevity influence. In C. elegans, smg-1 loss-of-function actually extends lifespan, making it anti-longevity (i.e., the gene normally suppresses longevity). The model incorrectly assumed that because NMD maintains transcriptome fidelity, loss of NMD would reduce longevity - but the actual experimental data shows the opposite. The model's reasoning that 'loss of NMD function generally reducing longevity' is factually incorrect for smg-1 in C. elegans. The model had moderate confidence (0.65) but was wrong on both the answer and the mechanistic interpretation of the experimental outcome.
Raw API responses
solver
{
"reasoning": "SMG-1 is a PI3K-related serine/threonine protein kinase that is a core component of the nonsense-mediated mRNA decay (NMD) pathway, phosphorylating UPF1/SMG-2 to initiate degradation of aberrant transcripts containing premature stop codons. By eliminating faulty mRNAs, SMG-1 maintains transcriptome fidelity and proteostasis, reducing the accumulation of truncated or aberrant proteins that could be toxic. In C. elegans, NMD pathway components including smg-1 have been shown to influence lifespan, with loss of NMD function generally reducing longevity. Additionally, SMG-1 is an ATM/ATR-related kinase involved in DNA damage response signaling, contributing to genomic stability. These combined roles in RNA surveillance and genome integrity maintenance are consistent with a pro-longevity function.",
"confidence": 0.65,
"key_pathways": [
"nonsense-mediated mRNA decay (NMD)",
"DNA damage response / ATM-ATR signaling",
"RNA quality control / proteostasis"
],
"mechanism_class": "genomic_instability",
"longevity_influence": "pro_longevity"
}advisor
{
"notes": "The model predicted pro_longevity but the ground truth is anti_longevity. The model's reasoning about SMG-1's role in NMD and DNA damage response is partially correct mechanistically, but it drew the wrong conclusion about the direction of longevity influence. In C. elegans, smg-1 loss-of-function actually extends lifespan, making it anti-longevity (i.e., the gene normally suppresses longevity). The model incorrectly assumed that because NMD maintains transcriptome fidelity, loss of NMD would reduce longevity - but the actual experimental data shows the opposite. The model's reasoning that 'loss of NMD function generally reducing longevity' is factually incorrect for smg-1 in C. elegans. The model had moderate confidence (0.65) but was wrong on both the answer and the mechanistic interpretation of the experimental outcome.",
"failure_mode": "confident_wrong",
"answer_correct": false,
"mechanism_correct": false,
"reasoning_quality": 2,
"ground_truth_questionable": false
}