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pgl-1

C. elegans

Guanyl-specific ribonuclease pgl-1

What the model saw

Gene: pgl-1
Organism: Caenorhabditis elegans
Known functions: Guanyl-specific ribonuclease pgl-1. RNA binding. RNA endonuclease activity. RNA helicase activity. identical protein binding. mRNA binding. protein binding. ribonuclease T1 activity.
View unredacted entry
Guanyl-specific ribonuclease pgl-1. RNA binding. RNA endonuclease activity. RNA helicase activity. identical protein binding. mRNA binding. protein binding. ribonuclease T1 activity.

Solver output

Predicted influence
Pro-longevity
Confidence
55%
Mechanism
Other
Reasoning

PGL-1 is a P granule component in C. elegans germline with RNA-binding, RNA endonuclease (ribonuclease T1/guanyl-specific), and RNA helicase activities. P granules are germline-specific RNA-protein condensates that regulate mRNA fate, including mRNA surveillance and post-transcriptional gene regulation in the germline. Germline integrity and RNA quality control in germ cells are closely linked to somatic longevity in C. elegans; loss of germline stem cells or disruption of germline RNA regulation can paradoxically extend lifespan, but PGL-1's role as an RNA endonuclease and helicase in P granules supports proper mRNA turnover and proteostasis in the germline. However, PGL-1 specifically functions in maintaining germline RNA homeostasis and P granule integrity, which supports germline stem cell function and reproductive fitness—processes that in C. elegans are associated with a longevity trade-off. The ribonuclease activity degrades aberrant or excess mRNAs, contributing to RNA quality control (a form of proteostasis maintenance at the RNA level). Given the complexity of germline-soma longevity signaling in C. elegans, where germline proliferation signals can shorten lifespan, PGL-1's support of germline stem cell RNA homeostasis could be modestly anti-longevity, but its RNA surveillance role is broadly pro-homeostatic.

Key pathways
P granule RNA surveillance and mRNA turnoverGermline RNA quality controlPost-transcriptional gene regulation in germline stem cells
Longevity influence
Anti-longevity
Lifespan effect
Increase

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

Answer
Incorrect
Mechanism
Incorrect
Reasoning quality
2/5
Failure mode
Confident wrong
Notes

The model predicted pro_longevity while the ground truth is anti_longevity. The model's reasoning was somewhat contradictory - it acknowledged that germline proliferation signals can shorten lifespan and that PGL-1's support of germline stem cell RNA homeostasis "could be modestly anti-longevity," yet ultimately settled on pro_longevity. The model correctly identified PGL-1 as a P granule component with RNA regulatory functions in the germline, and even touched on the germline-soma longevity trade-off in C. elegans, but failed to commit to the correct conclusion. The reasoning quality is poor because the model identified the relevant biology (germline signals shortening lifespan) but then chose the wrong answer despite its own reasoning pointing toward anti_longevity. The confidence of 0.55 shows some uncertainty, but the final call was still wrong.

Raw API responses

solver

{
  "reasoning": "PGL-1 is a P granule component in C. elegans germline with RNA-binding, RNA endonuclease (ribonuclease T1/guanyl-specific), and RNA helicase activities. P granules are germline-specific RNA-protein condensates that regulate mRNA fate, including mRNA surveillance and post-transcriptional gene regulation in the germline. Germline integrity and RNA quality control in germ cells are closely linked to somatic longevity in C. elegans; loss of germline stem cells or disruption of germline RNA regulation can paradoxically extend lifespan, but PGL-1's role as an RNA endonuclease and helicase in P granules supports proper mRNA turnover and proteostasis in the germline. However, PGL-1 specifically functions in maintaining germline RNA homeostasis and P granule integrity, which supports germline stem cell function and reproductive fitness—processes that in C. elegans are associated with a longevity trade-off. The ribonuclease activity degrades aberrant or excess mRNAs, contributing to RNA quality control (a form of proteostasis maintenance at the RNA level). Given the complexity of germline-soma longevity signaling in C. elegans, where germline proliferation signals can shorten lifespan, PGL-1's support of germline stem cell RNA homeostasis could be modestly anti-longevity, but its RNA surveillance role is broadly pro-homeostatic.",
  "confidence": 0.55,
  "key_pathways": [
    "P granule RNA surveillance and mRNA turnover",
    "Germline RNA quality control",
    "Post-transcriptional gene regulation in germline stem cells"
  ],
  "mechanism_class": "other",
  "longevity_influence": "pro_longevity"
}

advisor

{
  "notes": "The model predicted pro_longevity while the ground truth is anti_longevity. The model's reasoning was somewhat contradictory - it acknowledged that germline proliferation signals can shorten lifespan and that PGL-1's support of germline stem cell RNA homeostasis \"could be modestly anti-longevity,\" yet ultimately settled on pro_longevity. The model correctly identified PGL-1 as a P granule component with RNA regulatory functions in the germline, and even touched on the germline-soma longevity trade-off in C. elegans, but failed to commit to the correct conclusion. The reasoning quality is poor because the model identified the relevant biology (germline signals shortening lifespan) but then chose the wrong answer despite its own reasoning pointing toward anti_longevity. The confidence of 0.55 shows some uncertainty, but the final call was still wrong.",
  "failure_mode": "confident_wrong",
  "answer_correct": false,
  "mechanism_correct": false,
  "reasoning_quality": 2,
  "ground_truth_questionable": false
}
pgl-1 · Caenorhabditis elegans | Aging biology eval