title: Oxygens in DNA are main targets for ethylnitrosourea in normal and xeroderma pigmentosum fibroblasts and fetal rat brain cells.
mesh_terms: D000478:Alkylation; D001921:Brain; D002460:Cell Line; D004247:DNA; D004261:DNA Replication; D005038:Ethylnitrosourea; D006860:Hydrogen Bonding; D009607:Nitrosourea Compounds; D010100:Oxygen; D013329:Structure-Activity Relationship; D014983:Xeroderma Pigmentosum / Q000235:genetics
chemical_list: D009607:Nitrosourea Compounds; D004247:DNA; D005038:Ethylnitrosourea; D010100:Oxygen