SPACI score report for 1zm0 in ASTRAL 2.05:

PDB Entry: 1zm0
SPACI score: 0.35
AEROSPACI score: 0.35

Experiment type: XRAY
Resolution: 2.1
R-factor: 0.236
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 2
PCK3 PROCHECK H-bonds: 3
WCK1 WHAT_CHECK Packing: 0.526
WCK2 WHAT_CHECK Ramachandran: -0.968
WCK3 WHAT_CHECK Chi angles: -1.452
WCK4 WHAT_CHECK Backbone: 0.333

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).