RPL21A

solver

{
  "reasoning": "RPL21A encodes a structural component of the 60S ribosomal large subunit (eL21), directly contributing to ribosome biogenesis and translational capacity. In yeast, ribosome biogenesis is a major downstream effector of the TOR (Target of Rapamycin) nutrient-sensing pathway; high ribosomal activity is associated with pro-growth, pro-aging signaling. Deletion of large-subunit ribosomal protein genes, including RPL21A, has been shown to extend chronological and replicative lifespan in S. cerevisiae, likely by mimicking TOR inhibition and reducing global translation rates. Reduced translational output can improve proteostasis and shift resources toward stress resistance and longevity-promoting programs. Thus, the normal (wild-type) function of RPL21A — sustaining ribosome assembly and high translational activity — opposes longevity.",
  "confidence": 0.72,
  "key_pathways": [
    "TOR signaling / ribosome biogenesis",
    "translational regulation",
    "replicative lifespan extension via ribosomal protein deletion"
  ],
  "mechanism_class": "deregulated_nutrient_sensing",
  "longevity_influence": "anti_longevity"
}

advisor

{
  "notes": "The model correctly predicted anti_longevity for RPL21A. The mechanistic reasoning is sound and well-articulated: RPL21A encodes a 60S ribosomal protein, and deletion of ribosomal protein genes in yeast is well-established to extend lifespan by reducing translational output and mimicking TOR inhibition. The model correctly identifies that the wild-type function of RPL21A (supporting ribosome assembly and high translation) opposes longevity, making it anti_longevity. The mechanism class \"deregulated_nutrient_sensing\" is a reasonable classification given the TOR pathway connection, though \"translational regulation\" might be more precise. Overall, the reasoning is accurate and well-supported.",
  "failure_mode": "correct",
  "answer_correct": true,
  "mechanism_correct": true,
  "reasoning_quality": 5,
  "ground_truth_questionable": false
}