Neil1
M. musculus
nei endonuclease VIII-like 1 (E. coli)
What the model saw
Gene: Neil1 Organism: Mus musculus Known functions: nei endonuclease VIII-like 1 (E. coli). endonuclease 8-like 1. DNA N-glycosylase activity. DNA-(apurinic or apyrimidinic site) endonuclease activity. class I DNA-(apurinic or apyrimidinic site) endonuclease activity. damaged DNA binding. hydrolase activity, acting on glycosyl bonds. hydrolase activity, hydrolyzing N-glycosyl compounds. lyase activity. nucleic acid binding. zinc ion binding.
View unredacted entry
nei endonuclease VIII-like 1 (E. coli). endonuclease 8-like 1. DNA N-glycosylase activity. DNA-(apurinic or apyrimidinic site) endonuclease activity. class I DNA-(apurinic or apyrimidinic site) endonuclease activity. damaged DNA binding. hydrolase activity, acting on glycosyl bonds. hydrolase activity, hydrolyzing N-glycosyl compounds. lyase activity. nucleic acid binding. zinc ion binding.
Solver output
NEIL1 is a bifunctional DNA glycosylase/AP lyase that initiates base excision repair (BER) by recognizing and excising oxidatively damaged DNA bases (e.g., formamidopyrimidines, 8-oxoguanine, thymine glycol). Its DNA N-glycosylase activity cleaves the N-glycosidic bond to remove the damaged base, and its AP lyase activity then cleaves the phosphodiester backbone via β-δ elimination, generating a clean break for downstream BER. By efficiently removing oxidative DNA lesions—particularly those arising from reactive oxygen species—NEIL1 prevents mutagenic and cytotoxic base damage from accumulating in the genome. Loss of NEIL1 in mice leads to metabolic syndrome, obesity, and accelerated aging-associated pathologies, consistent with a pro-longevity role. Its primary function therefore directly counteracts genomic instability, a canonical hallmark of aging.
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 Neil1 in Mus musculus. The mechanistic reasoning is excellent and accurate: NEIL1 is indeed a bifunctional DNA glycosylase/AP lyase involved in base excision repair, removing oxidatively damaged DNA bases. The model correctly notes that Neil1 knockout mice develop metabolic syndrome, obesity, and accelerated aging-associated pathologies, which supports the pro-longevity classification. The mechanism class (genomic_instability) and key pathways are all appropriate. High confidence (0.82) is well-justified.
Raw API responses
solver
{
"reasoning": "NEIL1 is a bifunctional DNA glycosylase/AP lyase that initiates base excision repair (BER) by recognizing and excising oxidatively damaged DNA bases (e.g., formamidopyrimidines, 8-oxoguanine, thymine glycol). Its DNA N-glycosylase activity cleaves the N-glycosidic bond to remove the damaged base, and its AP lyase activity then cleaves the phosphodiester backbone via β-δ elimination, generating a clean break for downstream BER. By efficiently removing oxidative DNA lesions—particularly those arising from reactive oxygen species—NEIL1 prevents mutagenic and cytotoxic base damage from accumulating in the genome. Loss of NEIL1 in mice leads to metabolic syndrome, obesity, and accelerated aging-associated pathologies, consistent with a pro-longevity role. Its primary function therefore directly counteracts genomic instability, a canonical hallmark of aging.",
"confidence": 0.82,
"key_pathways": [
"base excision repair (BER)",
"oxidative DNA damage response",
"reactive oxygen species-induced mutagenesis prevention"
],
"mechanism_class": "genomic_instability",
"longevity_influence": "pro_longevity"
}advisor
{
"notes": "The model correctly predicted pro_longevity for Neil1 in Mus musculus. The mechanistic reasoning is excellent and accurate: NEIL1 is indeed a bifunctional DNA glycosylase/AP lyase involved in base excision repair, removing oxidatively damaged DNA bases. The model correctly notes that Neil1 knockout mice develop metabolic syndrome, obesity, and accelerated aging-associated pathologies, which supports the pro-longevity classification. The mechanism class (genomic_instability) and key pathways are all appropriate. High confidence (0.82) is well-justified.",
"failure_mode": "correct",
"answer_correct": true,
"mechanism_correct": true,
"reasoning_quality": 5,
"ground_truth_questionable": false
}