SPACI score report for 1iiz in ASTRAL 1.71:

PDB Entry: 1iiz
SPACI score: 0.27
AEROSPACI score: 0.27

Experiment type: XRAY
Resolution: 2.4
R-factor: 0.231
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 2
PCK3 PROCHECK H-bonds: 3
WCK1 WHAT_CHECK Packing: -1.77
WCK2 WHAT_CHECK Ramachandran: -2.5
WCK3 WHAT_CHECK Chi angles: -2.012
WCK4 WHAT_CHECK Backbone: -6.96

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).