pcf-11
C. elegans
CID domain-containing protein;Polyadenylation and cleavage factor homolog 11
What the model saw
Gene: pcf-11 Organism: Caenorhabditis elegans Known functions: CID domain-containing protein;Polyadenylation and cleavage factor homolog 11. RNA polymerase II complex binding. mRNA binding.
View unredacted entry
CID domain-containing protein;Polyadenylation and cleavage factor homolog 11. RNA polymerase II complex binding. mRNA binding.
Solver output
PCF-11 is the C. elegans homolog of the cleavage and polyadenylation factor PCF11, which contains a CID (CTD-interacting domain) that binds the C-terminal domain of RNA Polymerase II and couples transcription termination with 3' end processing of mRNA. Its primary molecular functions — RNA Pol II complex binding and mRNA binding — place it at the interface of transcription and post-transcriptional RNA processing. While proper mRNA 3' end formation is essential for gene expression fidelity, PCF11 family members also regulate alternative polyadenylation (APA), which can globally shift 3' UTR lengths and alter the expression of longevity-relevant transcripts. However, the net effect on longevity is ambiguous: APA regulation can either promote or oppose aging depending on which transcripts are affected, and there is no direct evidence linking pcf-11 specifically to a pro- or anti-longevity pathway in C. elegans.
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 "unclear" with low confidence (0.35), but the ground truth is "pro_longevity." The model's reasoning about PCF-11's molecular functions (mRNA 3' end processing, alternative polyadenylation, RNA Pol II coupling) is mechanistically plausible but doesn't lead to the correct conclusion. The model also incorrectly classified the mechanism as "epigenetic_alterations" when the gene's function is primarily in mRNA processing/cleavage and polyadenylation — this is a post-transcriptional RNA processing mechanism, not epigenetic. The model acknowledged uncertainty appropriately given limited direct evidence, but ultimately failed to identify the pro-longevity influence. The reasoning quality is limited by the incorrect mechanism class assignment and failure to reach the correct answer.
Raw API responses
solver
{
"reasoning": "PCF-11 is the C. elegans homolog of the cleavage and polyadenylation factor PCF11, which contains a CID (CTD-interacting domain) that binds the C-terminal domain of RNA Polymerase II and couples transcription termination with 3' end processing of mRNA. Its primary molecular functions — RNA Pol II complex binding and mRNA binding — place it at the interface of transcription and post-transcriptional RNA processing. While proper mRNA 3' end formation is essential for gene expression fidelity, PCF11 family members also regulate alternative polyadenylation (APA), which can globally shift 3' UTR lengths and alter the expression of longevity-relevant transcripts. However, the net effect on longevity is ambiguous: APA regulation can either promote or oppose aging depending on which transcripts are affected, and there is no direct evidence linking pcf-11 specifically to a pro- or anti-longevity pathway in C. elegans.",
"confidence": 0.35,
"key_pathways": [
"mRNA 3' end cleavage and polyadenylation",
"RNA Polymerase II transcription termination",
"alternative polyadenylation (APA) regulation"
],
"mechanism_class": "epigenetic_alterations",
"longevity_influence": "unclear"
}advisor
{
"notes": "The model predicted \"unclear\" with low confidence (0.35), but the ground truth is \"pro_longevity.\" The model's reasoning about PCF-11's molecular functions (mRNA 3' end processing, alternative polyadenylation, RNA Pol II coupling) is mechanistically plausible but doesn't lead to the correct conclusion. The model also incorrectly classified the mechanism as \"epigenetic_alterations\" when the gene's function is primarily in mRNA processing/cleavage and polyadenylation — this is a post-transcriptional RNA processing mechanism, not epigenetic. The model acknowledged uncertainty appropriately given limited direct evidence, but ultimately failed to identify the pro-longevity influence. The reasoning quality is limited by the incorrect mechanism class assignment and failure to reach the correct answer.",
"failure_mode": "confident_wrong",
"answer_correct": false,
"mechanism_correct": false,
"reasoning_quality": 2,
"ground_truth_questionable": false
}