274D:
reference: Crystal structure of a covalent DNA-drug adduct: anthramycin bound to C-C-A-A-C-G-T-T-G-G and a molecular explanation of specificity., Kopka ML, Goodsell DS, Baikalov I, Grzeskowiak K, Cascio D, Dickerson RE, Biochemistry 1994 Nov 22;33(46):13593-610. PMID: 7947769

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