SPACI score report for 1kuf in ASTRAL 2.08:

PDB Entry: 1kuf
SPACI score: 0.71
AEROSPACI score: 0.71

Experiment type: XRAY
Resolution: 1.35
R-factor: 0.181
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 1
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -1.531
WCK2 WHAT_CHECK Ramachandran: 0.594
WCK3 WHAT_CHECK Chi angles: -0.194
WCK4 WHAT_CHECK Backbone: 0.809

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).