mep-1
C. elegans
MOG interacting and ectopic P-granules protein 1
What the model saw
Gene: mep-1 Organism: Caenorhabditis elegans Known functions: MOG interacting and ectopic P-granules protein 1. DEAD/H-box RNA helicase binding. DNA-binding transcription factor activity. RNA binding. histone deacetylase binding. identical protein binding. protein binding. transcription cis-regulatory region binding.
View unredacted entry
MOG interacting and ectopic P-granules protein 1. DEAD/H-box RNA helicase binding. DNA-binding transcription factor activity. RNA binding. histone deacetylase binding. identical protein binding. protein binding. transcription cis-regulatory region binding.
Solver output
MEP-1 is a zinc-finger transcription factor that binds histone deacetylases (HDACs) and functions as part of the NuRD/Mi-2 chromatin remodeling complex in C. elegans. By recruiting HDACs to target loci, MEP-1 represses transcription of genes that would otherwise be inappropriately expressed, including germline-specific genes in somatic tissues (ectopic P-granule suppression). This epigenetic silencing role is closely tied to the maintenance of somatic cell identity and proteostasis. Loss of somatic repression of germline programs has been linked to accelerated aging in C. elegans, and MEP-1's role in enforcing this boundary through HDAC-dependent chromatin compaction is therefore expected to be pro-longevity. Additionally, its interaction with DEAD/H-box RNA helicases (MOG proteins) suggests a broader role in post-transcriptional regulation of germline fate determinants, further supporting somatic tissue integrity during 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 mep-1. The mechanistic reasoning is well-grounded: MEP-1 functions as part of the NuRD/Mi-2 chromatin remodeling complex, recruits HDACs to repress germline gene expression in somatic tissues, and the suppression of ectopic P-granules/germline programs in somatic cells is indeed linked to longevity in C. elegans. The model correctly connected histone deacetylase binding (from the gene's known functions) to epigenetic silencing and somatic cell identity maintenance. The reasoning about somatic repression of germline programs being pro-longevity is consistent with published literature on C. elegans aging. Confidence of 0.65 is appropriately calibrated given the indirect nature of the inference.
Raw API responses
solver
{
"reasoning": "MEP-1 is a zinc-finger transcription factor that binds histone deacetylases (HDACs) and functions as part of the NuRD/Mi-2 chromatin remodeling complex in C. elegans. By recruiting HDACs to target loci, MEP-1 represses transcription of genes that would otherwise be inappropriately expressed, including germline-specific genes in somatic tissues (ectopic P-granule suppression). This epigenetic silencing role is closely tied to the maintenance of somatic cell identity and proteostasis. Loss of somatic repression of germline programs has been linked to accelerated aging in C. elegans, and MEP-1's role in enforcing this boundary through HDAC-dependent chromatin compaction is therefore expected to be pro-longevity. Additionally, its interaction with DEAD/H-box RNA helicases (MOG proteins) suggests a broader role in post-transcriptional regulation of germline fate determinants, further supporting somatic tissue integrity during aging.",
"confidence": 0.65,
"key_pathways": [
"HDAC-dependent chromatin remodeling / NuRD complex",
"Somatic repression of germline gene expression",
"Epigenetic maintenance of cell identity"
],
"mechanism_class": "epigenetic_alterations",
"longevity_influence": "pro_longevity"
}advisor
{
"notes": "The model correctly predicted pro_longevity for mep-1. The mechanistic reasoning is well-grounded: MEP-1 functions as part of the NuRD/Mi-2 chromatin remodeling complex, recruits HDACs to repress germline gene expression in somatic tissues, and the suppression of ectopic P-granules/germline programs in somatic cells is indeed linked to longevity in C. elegans. The model correctly connected histone deacetylase binding (from the gene's known functions) to epigenetic silencing and somatic cell identity maintenance. The reasoning about somatic repression of germline programs being pro-longevity is consistent with published literature on C. elegans aging. Confidence of 0.65 is appropriately calibrated given the indirect nature of the inference.",
"failure_mode": "correct",
"answer_correct": true,
"mechanism_correct": true,
"reasoning_quality": 5,
"ground_truth_questionable": false
}