 | Acta Crystallographica Section D Acta Crystallographica Section D BIOLOGICAL CRYSTALLOGRAPHY |
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![[Figure 1]](ba5015fig1mag.jpg)
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Figure 1
Electron density for the reference β-sheet in trypsin, which consists of Ile47–Ala55, Ser86–His91 and Asn101–Lys109. The maps were calculated using SAS solvent-flattened phases. The maps are contoured at 1σ. SAS phases were calculated using (a) only Ca2+, (b) Ca2+ and nine S atoms deduced from the top ten peaks of the first list of Table 2 ![[link]](../../../../../../logos/arrows/d_arr.gif) , (c) Ca2+ and ten S atoms deduced from the top 11 peaks of the second list, (d) Ca2+ and ten S atoms deduced from the top 11 peaks of the third list, (e) Ca2+ and 14 S atoms after two S atoms were manually deduced from each disulfide bond. |
![[Figure 1]](ba5015fig1.jpg)
| BIOLOGICAL CRYSTALLOGRAPHY |
ISSN: 1399-0047
