SPACI score report for 1ktq in ASTRAL 1.59:

PDB Entry: 1ktq
SPACI score: 0.3
AEROSPACI score: 0.3

Experiment type: XRAY
Resolution: 2.5
R-factor: 0.198
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 3
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -1.69
WCK2 WHAT_CHECK Ramachandran: -2.589
WCK3 WHAT_CHECK Chi angles: -1.909
WCK4 WHAT_CHECK Backbone: -1.014

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).