SPACI score report for 2iw5 in ASTRAL 1.75:

PDB Entry: 2iw5
SPACI score: 0.37
AEROSPACI score: 0.37

Experiment type: XRAY
Resolution: 2.57
R-factor: 0.204
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 2
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -0.055
WCK2 WHAT_CHECK Ramachandran: -0.615
WCK3 WHAT_CHECK Chi angles: -2.018
WCK4 WHAT_CHECK Backbone: 0.518

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).