EBE-A22

EBE-A22 is a derivative of PD 153035. EBE-A22, has no effect on EGF-R TK but maintains a high cytotoxic profile. EBE-A22 binds to DNA and behave as typical intercalating agents. EBE-A22 unwinds supercoiled plasmid, stabilizes duplex DNA against heat denaturation, and produces negative CD and ELD signals, as expected for an intercalating agent. EBE-A22, but not PD153035, interacts preferentially with GC-rich sequences and discriminates against homooligomeric runs of A and T which are often cut more readily by the enzyme in the presence of the drug compared to the control.