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Figure 5
Structure determination and phasing. (a) CCall/CCweak of 5000 SHELXD trials, (b) experimental electron density after density modification, (c) refined electron-density map and (d) Bijvoet-difference Fourier peaks. Peaks for anomalous scatterers (sulfur) are shown as magenta isomeshes contoured at 3σ. The overall structure of thaumatin is shown as ribbons. The numbers and yellow spheres indicate, respectively, the positions and atoms of anomalous scatters in the structure: (1) Cys149–Cys158, (2) Cys159–Cys164, (3) Cys9–Cys204, (4) Cys121–Cys193, (5) Cys134–Cys145, (6) Cys56–Cys66, (7) Cys126–Cys177, (8) Met122, (9) Cys71–Cys77.

IUCrJ
Volume 6| Part 4| July 2019| Pages 532-542
ISSN: 2052-2525
https://doi.org/10.1107/S2052252519004536