Prp19
D. melanogaster
Pre-RNA processing factor 19
What the model saw
Gene: Prp19 Organism: Drosophila melanogaster Known functions: Pre-RNA processing factor 19. ubiquitin protein ligase activity. ubiquitin-protein transferase activity.
View unredacted entry
Pre-RNA processing factor 19. ubiquitin protein ligase activity. ubiquitin-protein transferase activity.
Solver output
Prp19 (Pre-mRNA Processing Factor 19) is a dual-function protein acting both as a core spliceosome component and as an E3 ubiquitin ligase. Its ubiquitin-protein transferase/ligase activity is critically involved in the DNA damage response: the human ortholog (hPrp19/SNEV) ubiquitinates RPA70 and other substrates to facilitate nucleotide excision repair (NER) and replication stress responses, thereby maintaining genomic integrity. Loss of Prp19 function impairs DNA repair capacity and pre-mRNA splicing fidelity, both of which accelerate genomic instability—a primary hallmark of aging. Additionally, Prp19 has been shown to promote cellular survival under genotoxic stress, and its overexpression extends replicative lifespan in yeast and human cell models. Thus, its normal function in DNA damage-coupled ubiquitination and RNA processing is expected to oppose aging-associated genomic deterioration.
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 Prp19 in Drosophila. The mechanistic reasoning is well-grounded: Prp19's dual role as a spliceosome component and E3 ubiquitin ligase involved in DNA damage response (NER, genomic stability) is a legitimate and well-supported mechanism for pro-longevity effects. The model appropriately references the human ortholog (hPrp19/SNEV) and its known roles in DNA repair and replicative lifespan extension. The confidence of 0.62 is reasonable given the indirect evidence. The reasoning is solid and the mechanism class (genomic_instability) is appropriate. Minor caveat: the specific Drosophila evidence is not directly cited, but the cross-species reasoning is valid.
Raw API responses
solver
{
"reasoning": "Prp19 (Pre-mRNA Processing Factor 19) is a dual-function protein acting both as a core spliceosome component and as an E3 ubiquitin ligase. Its ubiquitin-protein transferase/ligase activity is critically involved in the DNA damage response: the human ortholog (hPrp19/SNEV) ubiquitinates RPA70 and other substrates to facilitate nucleotide excision repair (NER) and replication stress responses, thereby maintaining genomic integrity. Loss of Prp19 function impairs DNA repair capacity and pre-mRNA splicing fidelity, both of which accelerate genomic instability—a primary hallmark of aging. Additionally, Prp19 has been shown to promote cellular survival under genotoxic stress, and its overexpression extends replicative lifespan in yeast and human cell models. Thus, its normal function in DNA damage-coupled ubiquitination and RNA processing is expected to oppose aging-associated genomic deterioration.",
"confidence": 0.62,
"key_pathways": [
"DNA damage response / nucleotide excision repair (NER)",
"Pre-mRNA splicing (spliceosome)",
"Ubiquitin-mediated protein modification"
],
"mechanism_class": "genomic_instability",
"longevity_influence": "pro_longevity"
}advisor
{
"notes": "The model correctly predicted pro_longevity for Prp19 in Drosophila. The mechanistic reasoning is well-grounded: Prp19's dual role as a spliceosome component and E3 ubiquitin ligase involved in DNA damage response (NER, genomic stability) is a legitimate and well-supported mechanism for pro-longevity effects. The model appropriately references the human ortholog (hPrp19/SNEV) and its known roles in DNA repair and replicative lifespan extension. The confidence of 0.62 is reasonable given the indirect evidence. The reasoning is solid and the mechanism class (genomic_instability) is appropriate. Minor caveat: the specific Drosophila evidence is not directly cited, but the cross-species reasoning is valid.",
"failure_mode": "correct",
"answer_correct": true,
"mechanism_correct": true,
"reasoning_quality": 4,
"ground_truth_questionable": false
}