1UNJ:
reference: Crystal and solution structures of 7-amino-actinomycin D complexes with d(TTAGBrUT), d(TTAGTT) and d(TTTAGTTT)., Alexopoulos E, Jares-Erijman EA, Jovin TM, Klement R, Machinek R, Sheldrick GM, Uson I, Acta Crystallogr D Biol Crystallogr. 2005 Apr;61(Pt 4):407-15. Epub 2005, Mar 24. PMID: 15805595

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