SPACI score report for 1krq in ASTRAL 1.73:

PDB Entry: 1krq
SPACI score: 0.33
AEROSPACI score: 0.33

Experiment type: XRAY
Resolution: 2.7
R-factor: 0.203
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 1
PCK3 PROCHECK H-bonds: 1
WCK1 WHAT_CHECK Packing: 0.402
WCK2 WHAT_CHECK Ramachandran: 0.142
WCK3 WHAT_CHECK Chi angles: -0.052
WCK4 WHAT_CHECK Backbone: -1.283

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).