SPACI score report for 1z72 in ASTRAL 1.75:

PDB Entry: 1z72
SPACI score: 0.81
AEROSPACI score: 0.81

Experiment type: XRAY
Resolution: 1.45
R-factor: 0.152
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 1
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -0.605
WCK2 WHAT_CHECK Ramachandran: 1.161
WCK3 WHAT_CHECK Chi angles: 0.59
WCK4 WHAT_CHECK Backbone: 1.115

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).