SPACI score report for 1o6z in ASTRAL 2.06:

PDB Entry: 1o6z
SPACI score: 0.43
AEROSPACI score: 0.43

Experiment type: XRAY
Resolution: 1.95
R-factor: 0.19365
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 2
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -1.067
WCK2 WHAT_CHECK Ramachandran: -2.447
WCK3 WHAT_CHECK Chi angles: -3.116
WCK4 WHAT_CHECK Backbone: -0.745

Note: Here are links to pages about PROCHECK and WHAT_CHECK.

Here is the full WHAT_CHECK report on this protein (linked from the WHAT_CHECK site).