Zw
D. melanogaster
Zwischenferment
What the model saw
Gene: Zw Organism: Drosophila melanogaster Known functions: Zwischenferment. zwischenferment. NADP binding. glucose-6-phosphate dehydrogenase activity. oxidoreductase activity, acting on CH-OH group of donors.
View unredacted entry
Zwischenferment. zwischenferment. NADP binding. glucose-6-phosphate dehydrogenase activity. oxidoreductase activity, acting on CH-OH group of donors.
Solver output
Zw encodes Glucose-6-Phosphate Dehydrogenase (G6PD), the rate-limiting enzyme of the pentose phosphate pathway (PPP). Its primary molecular function is the oxidation of glucose-6-phosphate coupled to NADP+ reduction, generating NADPH. NADPH is the principal cytosolic reductant used to regenerate glutathione (GSH) from GSSG via glutathione reductase, thereby maintaining the cellular antioxidant defense system. Elevated G6PD activity increases NADPH availability, reduces oxidative stress, and protects macromolecules from ROS-mediated damage — a well-established pro-longevity mechanism. In Drosophila and other organisms, overexpression of G6PD extends lifespan, while loss-of-function shortens it, consistent with oxidative stress being a key driver of aging. This places Zw's function squarely in redox homeostasis supporting resistance to oxidative damage rather than a canonical hallmark, best mapped to mitochondrial dysfunction/ROS management.
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 correctly identified Zw as encoding Glucose-6-Phosphate Dehydrogenase (G6PD), correctly predicted its pro-longevity influence, and provided an accurate and detailed mechanistic explanation. The reasoning covers the pentose phosphate pathway, NADPH production, glutathione redox cycle, and oxidative stress resistance — all well-established mechanisms linking G6PD to longevity in Drosophila. The model also correctly noted that overexpression extends lifespan while loss-of-function shortens it. Confidence of 0.82 is appropriate. This is an excellent prediction.
Raw API responses
solver
{
"reasoning": "Zw encodes Glucose-6-Phosphate Dehydrogenase (G6PD), the rate-limiting enzyme of the pentose phosphate pathway (PPP). Its primary molecular function is the oxidation of glucose-6-phosphate coupled to NADP+ reduction, generating NADPH. NADPH is the principal cytosolic reductant used to regenerate glutathione (GSH) from GSSG via glutathione reductase, thereby maintaining the cellular antioxidant defense system. Elevated G6PD activity increases NADPH availability, reduces oxidative stress, and protects macromolecules from ROS-mediated damage — a well-established pro-longevity mechanism. In Drosophila and other organisms, overexpression of G6PD extends lifespan, while loss-of-function shortens it, consistent with oxidative stress being a key driver of aging. This places Zw's function squarely in redox homeostasis supporting resistance to oxidative damage rather than a canonical hallmark, best mapped to mitochondrial dysfunction/ROS management.",
"confidence": 0.82,
"key_pathways": [
"Pentose phosphate pathway (NADPH production)",
"Glutathione redox cycle (GSH/GSSG balance)",
"Oxidative stress resistance"
],
"mechanism_class": "other",
"longevity_influence": "pro_longevity"
}advisor
{
"notes": "The model correctly identified Zw as encoding Glucose-6-Phosphate Dehydrogenase (G6PD), correctly predicted its pro-longevity influence, and provided an accurate and detailed mechanistic explanation. The reasoning covers the pentose phosphate pathway, NADPH production, glutathione redox cycle, and oxidative stress resistance — all well-established mechanisms linking G6PD to longevity in Drosophila. The model also correctly noted that overexpression extends lifespan while loss-of-function shortens it. Confidence of 0.82 is appropriate. This is an excellent prediction.",
"failure_mode": "correct",
"answer_correct": true,
"mechanism_correct": true,
"reasoning_quality": 5,
"ground_truth_questionable": false
}