RPL33B

solver

{
  "reasoning": "RPL33B encodes a structural component of the 60S ribosomal large subunit (eL33), directly contributing to ribosome biogenesis and translational capacity. In yeast, reduced ribosomal protein gene dosage — including deletion of one paralog of duplicated ribosomal protein genes — is associated with extended chronological and replicative lifespan, consistent with the well-established paradigm that dampening ribosome biogenesis and global translation rate extends longevity via TOR pathway modulation. The TOR/TORC1 signaling axis couples nutrient availability to ribosome production; reducing ribosomal output mimics caloric restriction and downregulates anabolic signaling. As a structural constituent of the ribosome, RPL33B's normal function promotes high translational output, which is pro-growth but anti-longevity in this context. Deletion of RPL33B specifically has been reported to extend replicative lifespan in S. cerevisiae screens.",
  "confidence": 0.65,
  "key_pathways": [
    "TORC1-mediated ribosome biogenesis",
    "translational regulation and protein synthesis",
    "caloric restriction mimicry via ribosomal protein reduction"
  ],
  "mechanism_class": "deregulated_nutrient_sensing",
  "longevity_influence": "anti_longevity"
}

advisor

{
  "notes": "The model correctly predicted anti_longevity for RPL33B. The reasoning is sound: RPL33B is a structural ribosomal protein, and its deletion (loss of function) extends lifespan, making the gene itself anti-longevity. The mechanistic explanation linking ribosome biogenesis, TOR signaling, and caloric restriction mimicry is well-established in yeast longevity research. The mechanism class \"deregulated_nutrient_sensing\" is a reasonable fit, though \"protein synthesis/translation\" might be more directly accurate. The model also correctly notes that RPL33B deletion has been reported to extend replicative lifespan in S. cerevisiae screens. Confidence of 0.65 is appropriate given the indirect nature of the evidence. Minor quibble: the mechanism class label is slightly imprecise (the primary mechanism is reduced translation/ribosome biogenesis, with TOR being upstream), but the overall reasoning is correct.",
  "failure_mode": "correct",
  "answer_correct": true,
  "mechanism_correct": true,
  "reasoning_quality": 4,
  "ground_truth_questionable": false
}