title: Electron microscopy of DNA cross-linked with trimethylpsoralen: a probe for chromatin structure.
mesh_terms: D000818:Animals; D002843:Chromatin / Q000648:ultrastructure*; D003374:Coumarins; D004247:DNA / Q000302:isolation & purification; D008099:Liver; D008297:Male; D051379:Mice; D008854:Microscopy, Electron; D008970:Molecular Weight; D009690:Nucleic Acid Conformation; D010777:Photochemistry; D013094:Spermatozoa; D014307:Trioxsalen
chemical_list: D002843:Chromatin; D003374:Coumarins; D004247:DNA; D014307:Trioxsalen