SPACI score report for 1zm3 in ASTRAL 2.07:

PDB Entry: 1zm3
SPACI score: 0.18
AEROSPACI score: 0.18

Experiment type: XRAY
Resolution: 3.07
R-factor: 0.249
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 2
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -1.618
WCK2 WHAT_CHECK Ramachandran: -4.542
WCK3 WHAT_CHECK Chi angles: -2.976
WCK4 WHAT_CHECK Backbone: -0.751

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).