SPACI score report for 2pw2 in ASTRAL 2.07:

PDB Entry: 2pw2
SPACI score: 0.28
AEROSPACI score: 0.28

Experiment type: XRAY
Resolution: 2.55
R-factor: 0.218
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 2
PCK3 PROCHECK H-bonds: 3
WCK1 WHAT_CHECK Packing: 0.156
WCK2 WHAT_CHECK Ramachandran: -1.554
WCK3 WHAT_CHECK Chi angles: -2.495
WCK4 WHAT_CHECK Backbone: 0.027

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).