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Structure of the malachite green aptamer. (a) Cartoon representation of the malachite green aptamer bound to TMR. The TMR ligand is shown as green ball-and-stick with flanking A-form helices and unstructured nucleotides (grey). Tetrad (yellow) and binding pocket nucleotides (marine and light blue) are colored. (b) Side view of the Spinach binding pocket (ball-and-stick) colored according to (a). (c) Top view of the nalachite green ligand-binding pocket.
