SPACI score report for 3qkm in ASTRAL 2.04:

PDB Entry: 3qkm
SPACI score: 0.41
AEROSPACI score: 0.41

Experiment type: XRAY
Resolution: 2.2
R-factor: 0.191
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 1
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -1.555
WCK2 WHAT_CHECK Ramachandran: -0.707
WCK3 WHAT_CHECK Chi angles: -0.249
WCK4 WHAT_CHECK Backbone: 2.882

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).