Figure 7
(a, b) Interpretation of the structure in terms of helical motifs. The black helical line was fitted to the centres of the consecutive ba–NM–AB–OP–ZY–LK–CD–QR–XW–JI–EF–ST–VU–HG dimers with 0.0 ≤ z < 0.5. The ANS molecules at binding sites 1 and 2 are in yellow, those at binding sites 3, 4, 5 and 6 are in red and those at binding sites 7 and 8 are in green. The red helical line was fitted to the ANS molecules marked in red. Views down the b (stereo) (a) and c (b) axes are shown. (c) The C2 unit cell and its symmetry elements (black) and the approximate P4122 unit cell and its symmetry elements (grey). The four rows in each Hyp-1 column are shown in different colour (red/green and blue/yellow dimers), in each case representing a set of seven molecules translated along the projection axis c. |