f53h1.3
C. elegans
UDENN domain-containing protein
What the model saw
Gene: F53H1.3 Organism: Caenorhabditis elegans Known functions: UDENN domain-containing protein. guanyl-nucleotide exchange factor activity.
View unredacted entry
UDENN domain-containing protein. guanyl-nucleotide exchange factor activity.
Solver output
F53H1.3 encodes a UDENN (DENN/MADD) domain-containing protein with guanyl-nucleotide exchange factor (GEF) activity. DENN-domain GEFs canonically activate Rab GTPases, which regulate vesicular trafficking, endosomal sorting, and autophagy flux. In C. elegans, Rab GTPase regulation intersects with nutrient-sensing pathways (e.g., mTORC1 lysosomal recruitment via Rag GTPases) and macroautophagy. However, the specific Rab target of F53H1.3 is not specified, and different Rab GEFs can either promote or oppose longevity depending on whether they facilitate or inhibit autophagic/lysosomal degradation. Without knowledge of the precise downstream Rab substrate and its role in aging-relevant pathways, the directionality of longevity influence cannot be confidently assigned.
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 "unclear" while the ground truth is "anti_longevity." The model's reasoning about DENN-domain GEFs and Rab GTPase regulation is plausible but generic, and it failed to commit to a direction. The model assigned only 0.35 confidence and hedged extensively, which is somewhat appropriate given limited information, but the ground truth is definitively anti_longevity. The mechanistic reasoning about nutrient sensing and autophagy is speculative and not specifically tied to F53H1.3's known role. The model did not identify the anti-longevity nature of this gene.
Raw API responses
solver
{
"reasoning": "F53H1.3 encodes a UDENN (DENN/MADD) domain-containing protein with guanyl-nucleotide exchange factor (GEF) activity. DENN-domain GEFs canonically activate Rab GTPases, which regulate vesicular trafficking, endosomal sorting, and autophagy flux. In C. elegans, Rab GTPase regulation intersects with nutrient-sensing pathways (e.g., mTORC1 lysosomal recruitment via Rag GTPases) and macroautophagy. However, the specific Rab target of F53H1.3 is not specified, and different Rab GEFs can either promote or oppose longevity depending on whether they facilitate or inhibit autophagic/lysosomal degradation. Without knowledge of the precise downstream Rab substrate and its role in aging-relevant pathways, the directionality of longevity influence cannot be confidently assigned.",
"confidence": 0.35,
"key_pathways": [
"Rab GTPase activation / vesicular trafficking",
"mTORC1-Rag GTPase nutrient sensing",
"macroautophagy / lysosomal degradation"
],
"mechanism_class": "deregulated_nutrient_sensing",
"longevity_influence": "unclear"
}advisor
{
"notes": "The model predicted \"unclear\" while the ground truth is \"anti_longevity.\" The model's reasoning about DENN-domain GEFs and Rab GTPase regulation is plausible but generic, and it failed to commit to a direction. The model assigned only 0.35 confidence and hedged extensively, which is somewhat appropriate given limited information, but the ground truth is definitively anti_longevity. The mechanistic reasoning about nutrient sensing and autophagy is speculative and not specifically tied to F53H1.3's known role. The model did not identify the anti-longevity nature of this gene.",
"failure_mode": "confident_wrong",
"answer_correct": false,
"mechanism_correct": false,
"reasoning_quality": 2,
"ground_truth_questionable": false
}