NCIt related terms : Hoechst dye 33258; Hoe 33258;
NCIt definition : A fluorescent dye of benzimidazole derivative. Pibenzimol binds to AT-specific sites
in the minor groove of duplex DNA and inhibits topoisomerase I, and DNA polymerase,
thereby preventing DNA replication. This agent prolongs the G2 phase of the cell cycle
and initiates apoptosis in tumor cells. (NCI04);