title: Chromatin structure of the ribosomal RNA genes of Tetrahymena thermophila as analyzed by trimethylpsoralen crosslinking in vivo.
mesh_terms: D000818:Animals; D001665:Binding Sites; D002843:Chromatin; D003432:Cross-Linking Reagents; D004247:DNA; D005796:Genes; D008027:Light; D008854:Microscopy, Electron; D009690:Nucleic Acid Conformation; D012335:RNA, Ribosomal; D013768:Tetrahymena / Q000235:genetics*; D014307:Trioxsalen
chemical_list: D002843:Chromatin; D003432:Cross-Linking Reagents; D012335:RNA, Ribosomal; D004247:DNA; D014307:Trioxsalen