SPACI score report for 1kq3 in ASTRAL 1.59:

PDB Entry: 1kq3
SPACI score: 0.67
AEROSPACI score: 0.67

Experiment type: XRAY
Resolution: 1.5
R-factor: 0.173
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 1
PCK3 PROCHECK H-bonds: 1
WCK1 WHAT_CHECK Packing: 0.738
WCK2 WHAT_CHECK Ramachandran: 1.031
WCK3 WHAT_CHECK Chi angles: 1.428
WCK4 WHAT_CHECK Backbone: 0.829

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).