Mrp4
D. melanogaster
Multidrug resistance protein 4
What the model saw
Gene: Mrp4 Organism: Drosophila melanogaster Known functions: Multidrug resistance protein 4. multidrug resistance protein 4. ABC-type transporter activity. ATP binding. ATP hydrolysis activity.
View unredacted entry
Multidrug resistance protein 4. multidrug resistance protein 4. ABC-type transporter activity. ATP binding. ATP hydrolysis activity.
Solver output
Mrp4 encodes a multidrug resistance protein belonging to the ABC transporter superfamily, which uses ATP hydrolysis to actively efflux a broad range of substrates including xenobiotics, oxidative stress byproducts, and signaling molecules (e.g., cyclic nucleotides) across membranes. By reducing intracellular accumulation of toxic compounds and reactive metabolites, Mrp4-mediated efflux activity can protect cells from damage that would otherwise accelerate aging. In Drosophila, ABC transporters with detoxification roles have been linked to stress resistance, a well-established correlate of longevity. Additionally, MRP4 orthologs transport cyclic AMP/GMP, which modulate nutrient-sensing and stress-response pathways relevant to lifespan. The net effect of efficient xenobiotic and metabolite clearance is expected to be cytoprotective and thus pro-longevity.
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 pro_longevity for Mrp4 in Drosophila. The mechanistic reasoning is plausible and internally consistent - ABC transporter detoxification, xenobiotic efflux, and cyclic nucleotide signaling are all reasonable pathways. However, the reasoning is largely inferential/generic rather than based on specific experimental evidence for Mrp4 in Drosophila longevity. The confidence of 0.55 is appropriately modest given the uncertainty. The mechanism class of "other" is reasonable for an ABC transporter. Overall a decent prediction with moderate-quality reasoning.
Raw API responses
solver
{
"reasoning": "Mrp4 encodes a multidrug resistance protein belonging to the ABC transporter superfamily, which uses ATP hydrolysis to actively efflux a broad range of substrates including xenobiotics, oxidative stress byproducts, and signaling molecules (e.g., cyclic nucleotides) across membranes. By reducing intracellular accumulation of toxic compounds and reactive metabolites, Mrp4-mediated efflux activity can protect cells from damage that would otherwise accelerate aging. In Drosophila, ABC transporters with detoxification roles have been linked to stress resistance, a well-established correlate of longevity. Additionally, MRP4 orthologs transport cyclic AMP/GMP, which modulate nutrient-sensing and stress-response pathways relevant to lifespan. The net effect of efficient xenobiotic and metabolite clearance is expected to be cytoprotective and thus pro-longevity.",
"confidence": 0.55,
"key_pathways": [
"ABC transporter-mediated xenobiotic detoxification",
"cyclic nucleotide (cAMP/cGMP) efflux and signaling",
"oxidative stress response"
],
"mechanism_class": "other",
"longevity_influence": "pro_longevity"
}advisor
{
"notes": "The model correctly predicted pro_longevity for Mrp4 in Drosophila. The mechanistic reasoning is plausible and internally consistent - ABC transporter detoxification, xenobiotic efflux, and cyclic nucleotide signaling are all reasonable pathways. However, the reasoning is largely inferential/generic rather than based on specific experimental evidence for Mrp4 in Drosophila longevity. The confidence of 0.55 is appropriately modest given the uncertainty. The mechanism class of \"other\" is reasonable for an ABC transporter. Overall a decent prediction with moderate-quality reasoning.",
"failure_mode": "correct",
"answer_correct": true,
"mechanism_correct": true,
"reasoning_quality": 3,
"ground_truth_questionable": false
}