SPACI score report for 8icb in ASTRAL 1.67:

PDB Entry: 8icb
SPACI score: 0.22
AEROSPACI score: 0.22

Experiment type: XRAY
Resolution: 3.1
R-factor: 0.153
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 3
PCK3 PROCHECK H-bonds: 3
WCK1 WHAT_CHECK Packing: -1.569
WCK2 WHAT_CHECK Ramachandran: -4.773
WCK3 WHAT_CHECK Chi angles: -4.996
WCK4 WHAT_CHECK Backbone: -7.599

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).