SPACI score report for 1z0j in ASTRAL 2.07:

PDB Entry: 1z0j
SPACI score: 0.71
AEROSPACI score: 0.71

Experiment type: XRAY
Resolution: 1.32
R-factor: 0.215
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 1
PCK3 PROCHECK H-bonds: 1
WCK1 WHAT_CHECK Packing: -1.087
WCK2 WHAT_CHECK Ramachandran: -0.115
WCK3 WHAT_CHECK Chi angles: 0.365
WCK4 WHAT_CHECK Backbone: 4.667

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).