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About the Cover


Skeleton drawing of the bis-intercalator drug triostin A (blue) binding to the DNA duplex d(GCGTACGC) (magenta). Two molecules of the drug bind to each duplex. See page 1255. [Picture by Gary L. Quigley and Christin A. Frederick (Biology Department, Massachusetts Institute of Technology, Cambridge, MA 02139) with assistance of Rob Campbell (Chemistry Department, MIT) using the program FRODO by Alwynn Jones on an Evens and Sutherland PS300 graphics system]


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Science. ISSN 0036-8075 (print), 1095-9203 (online)