Weak Anomalous Examples
We often encounter datasets that include weak experimental phases that we must depend on in order to solve our structures. The following two datasets are examples of Single-wavelength Anomalous Diffraction (SAD) phasing from a Se-Met derivatives. The anomalous signals are present, but weak, and attention must be given to successfully solve the phase problem.
Useful Information For Weak Anomalous Example 1
Data kindly provided by: John Rose and James Holton
Sample: Uncharacterized protein AF_1382 from Archaeoglobus fulgidus
PDB code: 2QVO
Merged reflection file produced by James Holton using his Elves program.
Phased/refined Structures and Instructions
| CNS | PHENIX | Refmac | BUSTER | SHELX | |
|---|---|---|---|---|---|
| PDB Files | TBA | TBA | TBA | TBA | Bundled files |
| Log Files | TBA | TBA | TBA | TBA | Bundled files |
| Author Instructions | Axel Brünger | Pavel Afonine | Garib Murshudov | Clemens Vonrhein | George Sheldrick |
| SFCheck Output | For CNS file | For PHENIX file | For Refmac file | For BUSTER file | For SHELX file |
Useful Information For Weak Anomalous Example 2
Data kindly provided by: Juergen Bosch
Sample: Plasmodium falciparum 6-pyruvoyl tetrahydropterin synthase (PTPS)
PDB Code: 1Y13
Merged reflection file.
Phased/refined Structures and Instructions
| CNS | PHENIX | Refmac | BUSTER | SHELX | |
|---|---|---|---|---|---|
| PDB Files | TBA | TBA | TBA | TBA | TBA |
| Log Files | TBA | TBA | TBA | TBA | TBA |
| Author Instructions | Axel Brünger | Pavel Afonine | Garib Murshudov | Clemens Vonrhein | George Sheldrick |
| SFCheck Output | For CNS file | For PHENIX file | For Refmac file | For BUSTER file | For SHELX file |
