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Figure 2
Model building of β-sheets in density-modified experimental electron-density maps. (ab) Sections of the electron-density map and model from S-­hydrolase (Turner et al., 1998BB66) in which the β-sheet model is largely correct (a) and incorrect (b). The refined model Cα trace is shown in light brown and the β-sheet Cα trace is shown in dark brown. (c) Ribbon diagram of part of the model obtained from structure 1038B at a resolution of 3 Å showing β-­sheets (PDB entry 1lql ; Choi et al., 2003BB11). (a) and (b) were created with Coot (Emsley & Cowtan, 2004BB22) and (c) was created with PyMOL (DeLano, 2002BB17).

Journal logoBIOLOGICAL
CRYSTALLOGRAPHY
ISSN: 1399-0047
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