{
 "approved_by_author": "\u2705",
 "citation": "de Lima Camillo, L. P., Asif, M. H., Horvath, S., Larschan, E., & Singh, R. Histone mark age of human tissues and cell types. Science Advances 11, eadk9373 (2025).",
 "citations": 33,
 "citations_date": "2026-10-02",
 "clock_name": "camilloh3k27me3",
 "data_type": "histone modification",
 "doi": "https://doi.org/10.1126/sciadv.adk9373",
 "journal": "Science Advances",
 "last_author": "Ritambhara Singh",
 "model_type": "PCA + elastic net + ARD regression",
 "n_features": 922,
 "notes": "Pan-tissue chronological-age predictor trained on gene-level H3K27me3 ChIP-seq enrichment; ElasticNet feature selection is followed by truncated-SVD PCA and automatic relevance determination regression.",
 "platform": [
  "ChIP-seq"
 ],
 "population": "all ages",
 "predicts": [
  "chronological age"
 ],
 "research_only": null,
 "species": "Homo sapiens",
 "tissue": [
  "multi-tissue"
 ],
 "training_target": [
  "chronological age"
 ],
 "unit": [
  "years"
 ],
 "version": "0.5.7",
 "year": 2025
}