Table 2.
Summary of refinement
| Resolution (Å) | 20.0–2.3 |
| Rwork/Rfree (%)* | 22.4/26.8 |
| rmsd bond lengths | 0.009 |
| rmsd bond angles | 1.2° |
| rmsd improper angles | 0.8° |
| rmsd dihedral angles | 20.5° |
| B value rmsd (main/side) | 1.2/1.9 |
| # metal ions | 2 |
| # water molecules | 172 |
rmsd, rms deviation.
Rwork,free = ∑∥Fobs| − |Fcalc∥/Fobs| for the reflections used in refinement (work) and the 10% of reflections held aside (free).