Hex-C
D. melanogaster
Hexokinase C
What the model saw
Gene: Hex-C Organism: Drosophila melanogaster Known functions: Hexokinase C. hexokinase C. ATP binding. D-glucose binding. fructokinase activity. glucokinase activity. glucosamine kinase activity. hexokinase activity. mannokinase activity.
View unredacted entry
Hexokinase C. hexokinase C. ATP binding. D-glucose binding. fructokinase activity. glucokinase activity. glucosamine kinase activity. hexokinase activity. mannokinase activity.
Solver output
Hexokinase C catalyzes the first committed step of glycolysis by phosphorylating glucose (and related hexoses such as fructose, mannose, and glucosamine) to their 6-phosphate forms, directly controlling glucose flux into glycolysis and downstream metabolic pathways. Elevated hexokinase activity increases glycolytic flux and glucose consumption, which can upregulate insulin/IGF-1 signaling (IIS) through elevated glucose and downstream metabolites. In Drosophila, heightened IIS activity suppresses FOXO transcription factor nuclear localization, reducing expression of stress-resistance and longevity-promoting genes. Additionally, increased hexose phosphorylation feeds into the hexosamine biosynthetic pathway (via glucosamine kinase activity), which can promote O-GlcNAcylation and further dysregulate nutrient sensing. Collectively, the normal pro-glycolytic function of Hex-C is expected to promote nutrient-sensing pathway activation in a manner that opposes longevity, consistent with the well-established paradigm that reduced glycolytic/IIS signaling extends lifespan in Drosophila.
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 predicted anti_longevity for Hex-C. The mechanistic reasoning is plausible and internally consistent — hexokinase activity driving glycolytic flux, IIS/FOXO suppression, and hexosamine pathway involvement are all reasonable pathways. However, the reasoning is somewhat speculative and inferential rather than grounded in specific experimental evidence for Hex-C in Drosophila. The model essentially reasons from first principles about what elevated hexokinase activity would do, rather than citing direct evidence. The confidence of 0.65 is appropriately modest. The mechanism class of "deregulated_nutrient_sensing" is reasonable. Overall a correct prediction with plausible but not strongly evidenced mechanistic reasoning.
Raw API responses
solver
{
"reasoning": "Hexokinase C catalyzes the first committed step of glycolysis by phosphorylating glucose (and related hexoses such as fructose, mannose, and glucosamine) to their 6-phosphate forms, directly controlling glucose flux into glycolysis and downstream metabolic pathways. Elevated hexokinase activity increases glycolytic flux and glucose consumption, which can upregulate insulin/IGF-1 signaling (IIS) through elevated glucose and downstream metabolites. In Drosophila, heightened IIS activity suppresses FOXO transcription factor nuclear localization, reducing expression of stress-resistance and longevity-promoting genes. Additionally, increased hexose phosphorylation feeds into the hexosamine biosynthetic pathway (via glucosamine kinase activity), which can promote O-GlcNAcylation and further dysregulate nutrient sensing. Collectively, the normal pro-glycolytic function of Hex-C is expected to promote nutrient-sensing pathway activation in a manner that opposes longevity, consistent with the well-established paradigm that reduced glycolytic/IIS signaling extends lifespan in Drosophila.",
"confidence": 0.65,
"key_pathways": [
"insulin/IGF-1 signaling (IIS) / FOXO axis",
"glycolysis / glucose flux regulation",
"hexosamine biosynthetic pathway"
],
"mechanism_class": "deregulated_nutrient_sensing",
"longevity_influence": "anti_longevity"
}advisor
{
"notes": "The model correctly predicted anti_longevity for Hex-C. The mechanistic reasoning is plausible and internally consistent — hexokinase activity driving glycolytic flux, IIS/FOXO suppression, and hexosamine pathway involvement are all reasonable pathways. However, the reasoning is somewhat speculative and inferential rather than grounded in specific experimental evidence for Hex-C in Drosophila. The model essentially reasons from first principles about what elevated hexokinase activity would do, rather than citing direct evidence. The confidence of 0.65 is appropriately modest. The mechanism class of \"deregulated_nutrient_sensing\" is reasonable. Overall a correct prediction with plausible but not strongly evidenced mechanistic reasoning.",
"failure_mode": "correct",
"answer_correct": true,
"mechanism_correct": true,
"reasoning_quality": 3,
"ground_truth_questionable": false
}