Hello,

I have a PDB for which, when I run either realspace refinement or validation, phenix does not show rama-z scores for helix or sheet (and the structure is not entirely loops..)

Rama-Z (Ramachandran plot Z-score):
  Interpretation: bad |Rama-Z| > 3; suspicious 2 < |Rama-Z| < 3; good |Rama-Z| < 2.
  Scores for whole/helix/sheet/loop are scaled independently;
  therefore, the values are not related in a simple manner.
    whole: -0.68 (0.08), residues: 8101
    helix:  None (None), residues: 0
    sheet:  None (None), residues: 0
    loop : -0.50 (0.06), residues: 8101

It seems peculiar to this one model, as other very similar ones are fine, but is this something that other people have seen before? I can supply the PBD off-list for investigation.

Best wishes

Hannah

-- 
Dr Hannah Bridges
Investigator Scientist
MRC Mitochondrial Biology Unit
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