SPACI score report for 3i2k in ASTRAL 2.04:

PDB Entry: 3i2k
SPACI score: 0.66
AEROSPACI score: 0.66

Experiment type: XRAY
Resolution: 1.51
R-factor: 0.146
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 1
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -2.162
WCK2 WHAT_CHECK Ramachandran: -0.821
WCK3 WHAT_CHECK Chi angles: 0.645
WCK4 WHAT_CHECK Backbone: -0.706

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).