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(A) Crucial ROE contacts for determining the orientation of side chains (yellow lines) shown on the example of a conformer of gymnochrome H (2). (B) A selected region of 2D 1H-1H ROESY spectrum of gymnochrome H (2). Slices extracted through the diagonal peaks of H1a″ and H1b’ (dashed lines) are shown on the right side. Proton assignments are denoted on the resonances.
