Table 4. Data, phasing and structure-refinement statistics of concanavalin A.
| Data collection | |
| Space group | I222 |
| Unit-cell parameters | 61.6, 85.6, 88.8 |
| Resolution† (Å) | 42.83–1.929 (1.998–1.929) |
| Phasing statistics | |
| Best SHELXE CC of partial model | 37.96 |
| Average fragment size | 21 |
| Best MPE against partially refined model | 64 |
| Refinement statistics | |
| R factor (%) | 0.15 |
| R free ‡ (%) | 0.184 |
| Cruickshank’s DPI for coordinate error§ based on R factor (Å) | 0.14 |
| Wilson plot B factor (Å2) | 17.2 |
| Average all-atom B factor (Å2) | 19.8 |
| R.m.s.d., bonds (Å) | 0.004 |
| R.m.s.d., angles (Å) | 1.07 |
| Total No. of non-H atoms | 2076 |
| Total No. of water molecules | 260 |
| Solvent content (%) | 46.4 |
| Matthews coefficient (Å3 Da−1) | 2.3 |
| Ramachandran plot¶ | |
| Favoured region (%) | 97.45 |
| Allowed region (%) | 2.13 |
| Outliers (%) | 0.43 |
Values in parentheses are for the highest resolution bin.
R free is calculated using 5% of the total reflections that were randomly selected and excluded from refinement.
DPI = [N atoms/(N refl − N params)]1/2 RD max C −1/3, where N atoms is the number of atoms included in the refinement, N refl is the number of reflections included in the refinement, R is the R factor, D max is the maximum resolution of the reflections included in the refinement, C is the completeness of the observed data and, for isotropic refinement, N params ≃ 4N atoms (Cruickshank, 1999 ▸).
Calculated with PHENIX (Adams et al., 2010 ▸).