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The structure of Kt-7 in the complex with L7Ae and in the absence of bound protein. These are shown as parallel-eye stereoscopic pairs. (A) The complete k-turn structure, viewed from the side of the bulged strand, with the electron density shown contoured at 2σ is taken from the composite omit map. (B,C) The structures of Kt-7 in the complex (B) and protein-free (C), both viewed from the nonbulged strand side with the C-helix directed rightward.
