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Binding model for the complex formed between ImHpPyPyPy-y-ImHpPyPyPy-P-Dp and a 5′-TGTTACA-3′ sequence. Circles with dots represent the lone pairs of N(3) of purines and O(2) of pyrimidines, and circles containing an H represent the 2-amino group of guanine. Hydrogen bonds are shown as dashed lines.
