. "US" . "Biochemistry" . "BICHAW" . "0033" . "0006-2960" . "38" . "9221" . "9233" . "10.1021/bi990352m" . . "Crystal structure of the topoisomerase II poison 9-amino-[N-(2-dimethylamino)ethyl]acridine-4-carboxamide bound to the DNA hexanucleotide d(CGTACG)2." . . . . . .