Table 1. Characterization of CfaEB, CfaBB and CfaBBB crystals and their diffraction statistics.
Values in parentheses are for the outer resolution shell.
| CfaEB | CfaBB | CfaBBB | |
|---|---|---|---|
| Wavelength (Å) | 0.7500 | 1.0000 | 0.7500 |
| Beamline | 22-ID, APS | 22-ID, APS | 22-ID, APS |
| Exposure time (s) | 5 | 2 | 4.5 |
| Resolution (Å) | 50–2.10 (2.18–2.10) | 50–2.25 (2.33–2.25) | 50–2.10 (2.18–2.10) |
| Space group | P21 | P21212 | C2 |
| Unit-cell parameters | |||
| a (Å) | 67.14, | 75.21 | 127.53 |
| b (Å) | 45.16 | 134.82 | 44.81 |
| c (Å) | 128.32 | 65.07 | 98.11 |
| α (°) | 90 | 90 | 90 |
| β (°) | 97.31 | 90 | 125.41 |
| γ (°) | 90 | 90 | 90 |
| No. of observations | 290802 | 184126 | 124305 |
| No. of unique reflections | 44915 | 32280 | 25005 |
| Mosaicity (°) | 0.642 | 0.227 | 0.375 |
| Rmerge† | 0.062 (0.229) | 0.095 (0.388) | 0.079 (0.401) |
| Completeness (%) | 92.0 (75.5) | 96.5 (83.4) | 93.5 (71.9) |
| Average I/σ(I) | 23.0 (7.1) | 15.4 (2.4) | 17.3 (3.4) |
| Redundancy | 7.0 | 5.6 | 5.0 |
†
R
merge is defined as 
, where Ii(hkl) is the intensity for the ith observation of a reflection with Miller indices hkl and 〈I(hkl)〉 is the mean intensity for all measured values of I(hkl) and its Friedel pair.