Psoralen photochemistry.
D002843:Chromatin; D004247:DNA; D004926:Escherichia coli / Q000648:ultrastructure; D011564:Furocoumarins; D007700:Kinetics; D010777:Photochemistry; D012313:RNA
D002843:Chromatin; D011564:Furocoumarins; D012313:RNA; D004247:DNA