SPACI score report for 1k0y in ASTRAL 2.05:

PDB Entry: 1k0y
SPACI score: 0.52
AEROSPACI score: 0.52

Experiment type: XRAY
Resolution: 1.87
R-factor: 0.163
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 2
PCK3 PROCHECK H-bonds: 1
WCK1 WHAT_CHECK Packing: 0.236
WCK2 WHAT_CHECK Ramachandran: 0.46
WCK3 WHAT_CHECK Chi angles: -0.663
WCK4 WHAT_CHECK Backbone: 0.93

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).