SPACI score report for 2wnz in ASTRAL 2.08:

PDB Entry: 2wnz
SPACI score: 0.52
AEROSPACI score: 0.52

Experiment type: XRAY
Resolution: 1.85
R-factor: 0.19025
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 1
PCK3 PROCHECK H-bonds: 1
WCK1 WHAT_CHECK Packing: -0.303
WCK2 WHAT_CHECK Ramachandran: 0.277
WCK3 WHAT_CHECK Chi angles: 0.402
WCK4 WHAT_CHECK Backbone: 0.089

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).