Coq7
M. musculus
demethyl-Q 7
What the model saw
Gene: Coq7 Organism: Mus musculus Known functions: demethyl-Q 7. NADPH-dependent 3-demethoxyubiquinone 3-hydroxylase, mitochondrial. 3-demethoxyubiquinone 3-hydroxylase (NADH) activity. chromatin binding. monooxygenase activity. oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen, NAD(P)H as one donor, and incorporation of one atom of oxygen.
View unredacted entry
demethyl-Q 7. NADPH-dependent 3-demethoxyubiquinone 3-hydroxylase, mitochondrial. 3-demethoxyubiquinone 3-hydroxylase (NADH) activity. chromatin binding. monooxygenase activity. oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen, NAD(P)H as one donor, and incorporation of one atom of oxygen.
Solver output
Coq7 encodes a mitochondrial hydroxylase that catalyzes a key penultimate step in the biosynthesis of Coenzyme Q (ubiquinone), specifically the hydroxylation of 3-demethoxyubiquinol to demethoxyubiquinol. Coenzyme Q is an essential electron carrier in the mitochondrial electron transport chain (complexes I/II to III), and its deficiency leads to impaired oxidative phosphorylation, increased reactive oxygen species (ROS) production, and mitochondrial dysfunction. Adequate CoQ levels are critical for efficient ATP production and for serving as a lipid-soluble antioxidant that limits oxidative damage to mitochondrial membranes. Loss-of-function mutations in Coq7 cause severe CoQ deficiency and are associated with mitochondrial disease phenotypes, while restoration of CoQ biosynthesis extends lifespan in model organisms. Thus, the normal function of Coq7 in sustaining CoQ biosynthesis supports mitochondrial integrity and opposes aging-associated mitochondrial decline.
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 with 0.82 confidence, but the ground truth is anti_longevity. The model's reasoning assumes that because CoQ7 supports CoQ biosynthesis and mitochondrial function, it must be pro-longevity. However, the GenAge classification of anti_longevity suggests that Coq7 actually reduces lifespan when overexpressed or that its normal activity promotes aging. This is consistent with research showing that partial reduction of CoQ7 activity (e.g., heterozygous clk-1/Coq7 mutants in C. elegans) can actually extend lifespan, possibly by reducing mitochondrial ROS production or by a hormetic mechanism. The model failed to consider that reducing CoQ biosynthesis (via partial Coq7 loss) can extend lifespan, making the gene anti-longevity in the sense that its normal activity limits lifespan. The model's reasoning was entirely focused on the conventional view that CoQ is beneficial, missing the nuanced finding that CoQ7 activity can be anti-longevity. The confidence of 0.82 makes this a notably wrong prediction.
Raw API responses
solver
{
"reasoning": "Coq7 encodes a mitochondrial hydroxylase that catalyzes a key penultimate step in the biosynthesis of Coenzyme Q (ubiquinone), specifically the hydroxylation of 3-demethoxyubiquinol to demethoxyubiquinol. Coenzyme Q is an essential electron carrier in the mitochondrial electron transport chain (complexes I/II to III), and its deficiency leads to impaired oxidative phosphorylation, increased reactive oxygen species (ROS) production, and mitochondrial dysfunction. Adequate CoQ levels are critical for efficient ATP production and for serving as a lipid-soluble antioxidant that limits oxidative damage to mitochondrial membranes. Loss-of-function mutations in Coq7 cause severe CoQ deficiency and are associated with mitochondrial disease phenotypes, while restoration of CoQ biosynthesis extends lifespan in model organisms. Thus, the normal function of Coq7 in sustaining CoQ biosynthesis supports mitochondrial integrity and opposes aging-associated mitochondrial decline.",
"confidence": 0.82,
"key_pathways": [
"Coenzyme Q (ubiquinone) biosynthesis",
"Mitochondrial electron transport chain",
"Mitochondrial ROS defense"
],
"mechanism_class": "mitochondrial_dysfunction",
"longevity_influence": "pro_longevity"
}advisor
{
"notes": "The model predicted pro_longevity with 0.82 confidence, but the ground truth is anti_longevity. The model's reasoning assumes that because CoQ7 supports CoQ biosynthesis and mitochondrial function, it must be pro-longevity. However, the GenAge classification of anti_longevity suggests that Coq7 actually reduces lifespan when overexpressed or that its normal activity promotes aging. This is consistent with research showing that partial reduction of CoQ7 activity (e.g., heterozygous clk-1/Coq7 mutants in C. elegans) can actually extend lifespan, possibly by reducing mitochondrial ROS production or by a hormetic mechanism. The model failed to consider that reducing CoQ biosynthesis (via partial Coq7 loss) can extend lifespan, making the gene anti-longevity in the sense that its normal activity limits lifespan. The model's reasoning was entirely focused on the conventional view that CoQ is beneficial, missing the nuanced finding that CoQ7 activity can be anti-longevity. The confidence of 0.82 makes this a notably wrong prediction.",
"failure_mode": "confident_wrong",
"answer_correct": false,
"mechanism_correct": false,
"reasoning_quality": 2,
"ground_truth_questionable": false
}