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- NOTE:  we checked the CIF file using the International Union of Crystallography facility found at:  http://checkcif.iucr.org/ and found serious alerts (level A) which may indicate errors ¨C see attached checkcif report (PDF file) and comments from our data analyst (below).  Please correct the errors, or add a comment to the CIF file explaining the significance of the alerts.
COMMENTS:
The structure appears to contain two water molecules of crystallisation, however the hydrogen atoms of these water molecules have been attached in a chemically unreasonable way (see the attached picture).  The hydrogen atoms, need to be re-located (it is possible that theye are disordered as the oxygen atoms do not seem to make any sensible H-bond contacts with the main residue.  Otherwise the structure is OK.  

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Notes from CIF analyst:
The authors have opted to employ the solvent masking procedure in OLEX (similar to SQUEEZE) which is used to remove the contributions from disordered solvent.  The water oxygens did not appear to be disordered, simply the H atoms were incorrectly placed, but this is their choice. However, if OLEX is applied, then the cif should not only contain details of this procedure, but the unit cell contents should include those atoms which were removed. Failure to do this results in an incorrect F000 and crystal density.  Finally, a note should be added to the refinement_special_details detailing this procedure and why it was applied.


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