SPACI score report for 2w3i in ASTRAL 2.01:

PDB Entry: 2w3i
SPACI score: 0.43
AEROSPACI score: 0.43

Experiment type: XRAY
Resolution: 1.9
R-factor: 0.222
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 2
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: 0.015
WCK2 WHAT_CHECK Ramachandran: -0.531
WCK3 WHAT_CHECK Chi angles: -0.783
WCK4 WHAT_CHECK Backbone: 2.33

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).