SPACI score report for 3i3c in ASTRAL 2.01:

PDB Entry: 3i3c
SPACI score: 0.27
AEROSPACI score: 0.27

Experiment type: XRAY
Resolution: 2.48
R-factor: 0.268
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 1
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -1.891
WCK2 WHAT_CHECK Ramachandran: -2.265
WCK3 WHAT_CHECK Chi angles: -2.219
WCK4 WHAT_CHECK Backbone: 3.124

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).