Table 2. SAD phasing results for different error models.
Values in parentheses are for the highest resolution bin.
| Protocol | 1 | 2 | 3 |
|---|---|---|---|
| Weight† | — | σhj | σEv11 |
| Resolution (Å) | 80.78–1.80 (1.86–1.80) | ||
| I/σ‡ | 13.8 (2.7) | 59.7 (2.0) | 14.0 (1.4) |
| CC1/2 (%) | 99.9 (73.8) | 99.8 (63.3) | 99.9 (81.4) |
| Zn2+ peak height (σ) | 53.1 | 50.5 | 67.0 |
| No. of sites found by HySS § | 6 ± 0 | 6 ± 0 | 6 ± 0 |
| No. of residues built (of 316)§ | 252.4 ± 15.2 | 104.1 ± 1.4 | 297.2 ± 6.5 |
| Model–map CC§ ¶ (%) | 71.0 ± 0.4 | 30.3 ± 0.2 | 80.0 ± 0.1 |
| R work § (%) | 27.4 ± 1.8 | 54.8 ± 0.3 | 21.2 ± 1.3 |
| R free § (%) | 29.9 ± 2.0 | 57.3 ± 0.8 | 23.7 ± 1.7 |
†
As in Table 1 ▸, for a given weight w where w = 1/σ2.
‡
These are higher than in Fig. 3 ▸ because the higher intensity observations are given a higher weight during merging.
§
Numbers are mean ± standard deviation over ten trials with differing random-number seeds.
¶
Phased map correlation to the known structure.