hop
D. melanogaster
hopscotch
What the model saw
Gene: hop Organism: Drosophila melanogaster Known functions: hopscotch. ATP binding. cytokine receptor binding. non-membrane spanning protein tyrosine kinase activity. protein kinase activity. protein tyrosine kinase activity.
View unredacted entry
hopscotch. ATP binding. cytokine receptor binding. non-membrane spanning protein tyrosine kinase activity. protein kinase activity. protein tyrosine kinase activity.
Solver output
The hop (hopscotch) gene encodes the Drosophila JAK (Janus kinase) ortholog, a non-membrane-spanning protein tyrosine kinase that binds cytokine receptors and transduces inflammatory/immune signals via the JAK-STAT pathway. Hyperactivation of JAK-STAT signaling in Drosophila is well-documented to promote chronic inflammatory states, tumor-like hematopoietic neoplasias, and tissue dysfunction. Sustained JAK activity drives pro-inflammatory cytokine signaling (e.g., Unpaired ligands activating Domeless receptor), which accelerates age-related tissue deterioration. Loss-of-function or attenuation of hop/JAK activity has been associated with extended lifespan in flies, consistent with JAK-STAT being a pro-aging, anti-longevity pathway. This maps directly to the chronic inflammation hallmark of aging, where persistent innate immune/cytokine signaling shortens healthspan and lifespan.
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 anti_longevity with 0.78 confidence, but the ground truth is pro_longevity. The model's reasoning about JAK-STAT signaling being pro-inflammatory and anti-longevity is plausible in general terms, but it got the direction wrong for this specific gene in Drosophila. The hop/JAK gene in Drosophila has been shown to have pro-longevity effects - likely through its role in tissue maintenance, stem cell regulation, or immune defense rather than purely driving chronic inflammation. The model correctly identified the JAK-STAT pathway and the gene's role as a JAK kinase, but incorrectly concluded that loss-of-function extends lifespan. In reality, hop appears to be pro-longevity in flies, meaning its activity supports longer lifespan. The model's mechanistic reasoning was one-sided, focusing only on the hyperactivation/tumor-promoting aspects of JAK-STAT while ignoring the beneficial roles of JAK signaling in tissue homeostasis and immune defense that contribute to longevity.
Raw API responses
solver
{
"reasoning": "The hop (hopscotch) gene encodes the Drosophila JAK (Janus kinase) ortholog, a non-membrane-spanning protein tyrosine kinase that binds cytokine receptors and transduces inflammatory/immune signals via the JAK-STAT pathway. Hyperactivation of JAK-STAT signaling in Drosophila is well-documented to promote chronic inflammatory states, tumor-like hematopoietic neoplasias, and tissue dysfunction. Sustained JAK activity drives pro-inflammatory cytokine signaling (e.g., Unpaired ligands activating Domeless receptor), which accelerates age-related tissue deterioration. Loss-of-function or attenuation of hop/JAK activity has been associated with extended lifespan in flies, consistent with JAK-STAT being a pro-aging, anti-longevity pathway. This maps directly to the chronic inflammation hallmark of aging, where persistent innate immune/cytokine signaling shortens healthspan and lifespan.",
"confidence": 0.78,
"key_pathways": [
"JAK-STAT signaling",
"cytokine receptor signaling",
"innate immune/inflammatory signaling"
],
"mechanism_class": "chronic_inflammation",
"longevity_influence": "anti_longevity"
}advisor
{
"notes": "The model predicted anti_longevity with 0.78 confidence, but the ground truth is pro_longevity. The model's reasoning about JAK-STAT signaling being pro-inflammatory and anti-longevity is plausible in general terms, but it got the direction wrong for this specific gene in Drosophila. The hop/JAK gene in Drosophila has been shown to have pro-longevity effects - likely through its role in tissue maintenance, stem cell regulation, or immune defense rather than purely driving chronic inflammation. The model correctly identified the JAK-STAT pathway and the gene's role as a JAK kinase, but incorrectly concluded that loss-of-function extends lifespan. In reality, hop appears to be pro-longevity in flies, meaning its activity supports longer lifespan. The model's mechanistic reasoning was one-sided, focusing only on the hyperactivation/tumor-promoting aspects of JAK-STAT while ignoring the beneficial roles of JAK signaling in tissue homeostasis and immune defense that contribute to longevity.",
"failure_mode": "confident_wrong",
"answer_correct": false,
"mechanism_correct": false,
"reasoning_quality": 3,
"ground_truth_questionable": false
}