Edem1
D. melanogaster
ER degradation enhancer, mannosidase alpha-like 1
What the model saw
Gene: Edem1 Organism: Drosophila melanogaster Known functions: ER degradation enhancer, mannosidase alpha-like 1. calcium ion binding. mannosyl-oligosaccharide 1,2-alpha-mannosidase activity.
View unredacted entry
ER degradation enhancer, mannosidase alpha-like 1. calcium ion binding. mannosyl-oligosaccharide 1,2-alpha-mannosidase activity.
Solver output
EDEM1 (ER Degradation Enhancing Mannosidase-like protein 1) is a key component of the ER-associated degradation (ERAD) pathway. Its mannosyl-oligosaccharide 1,2-alpha-mannosidase activity trims mannose residues from misfolded N-glycoproteins, generating a signal (Man5-7 glycan) that targets them for retrotranslocation and proteasomal degradation. By accelerating the clearance of misfolded glycoproteins from the ER, EDEM1 reduces ER stress and supports proteostasis. Maintenance of proteostasis — particularly efficient ERAD — is a well-established pro-longevity mechanism, as accumulation of misfolded proteins in the ER drives chronic UPR activation and cellular dysfunction associated with aging. Loss of EDEM1 function would be expected to impair ERAD, exacerbate ER stress, and shorten lifespan, consistent with its normal function being 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 predicted pro_longevity but the ground truth is anti_longevity. The model's reasoning about EDEM1's role in ERAD and proteostasis is mechanistically plausible in general terms, but it led to the wrong conclusion. The model assumed that because EDEM1 supports ERAD and proteostasis, it must be pro-longevity. However, in Drosophila, Edem1 is classified as anti_longevity, meaning its activity actually reduces lifespan (or conversely, its loss extends lifespan). This could be because excessive ERAD activity or EDEM1 overactivity may be detrimental, or because EDEM1 in Drosophila plays a different role than expected. The model was fairly confident (0.72) in the wrong direction. The reasoning quality is moderate - it correctly identifies EDEM1's biochemical function but fails to account for the possibility that the gene could be anti-longevity (e.g., overactive ERAD could degrade functional proteins, or EDEM1 may have context-specific effects in Drosophila aging).
Raw API responses
solver
{
"reasoning": "EDEM1 (ER Degradation Enhancing Mannosidase-like protein 1) is a key component of the ER-associated degradation (ERAD) pathway. Its mannosyl-oligosaccharide 1,2-alpha-mannosidase activity trims mannose residues from misfolded N-glycoproteins, generating a signal (Man5-7 glycan) that targets them for retrotranslocation and proteasomal degradation. By accelerating the clearance of misfolded glycoproteins from the ER, EDEM1 reduces ER stress and supports proteostasis. Maintenance of proteostasis — particularly efficient ERAD — is a well-established pro-longevity mechanism, as accumulation of misfolded proteins in the ER drives chronic UPR activation and cellular dysfunction associated with aging. Loss of EDEM1 function would be expected to impair ERAD, exacerbate ER stress, and shorten lifespan, consistent with its normal function being pro-longevity.",
"confidence": 0.72,
"key_pathways": [
"ER-associated degradation (ERAD)",
"Unfolded protein response (UPR)",
"N-glycan processing / mannosidase trimming"
],
"mechanism_class": "loss_of_proteostasis",
"longevity_influence": "pro_longevity"
}advisor
{
"notes": "The model predicted pro_longevity but the ground truth is anti_longevity. The model's reasoning about EDEM1's role in ERAD and proteostasis is mechanistically plausible in general terms, but it led to the wrong conclusion. The model assumed that because EDEM1 supports ERAD and proteostasis, it must be pro-longevity. However, in Drosophila, Edem1 is classified as anti_longevity, meaning its activity actually reduces lifespan (or conversely, its loss extends lifespan). This could be because excessive ERAD activity or EDEM1 overactivity may be detrimental, or because EDEM1 in Drosophila plays a different role than expected. The model was fairly confident (0.72) in the wrong direction. The reasoning quality is moderate - it correctly identifies EDEM1's biochemical function but fails to account for the possibility that the gene could be anti-longevity (e.g., overactive ERAD could degrade functional proteins, or EDEM1 may have context-specific effects in Drosophila aging).",
"failure_mode": "confident_wrong",
"answer_correct": false,
"mechanism_correct": false,
"reasoning_quality": 3,
"ground_truth_questionable": false
}