SPACI score report for 2bn0 in ASTRAL 2.02:

PDB Entry: 2bn0
SPACI score: 0.27
AEROSPACI score: 0.27

Experiment type: XRAY
Resolution: 2.8
R-factor: 0.205
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 1
PCK3 PROCHECK H-bonds: 3
WCK1 WHAT_CHECK Packing: 0.094
WCK2 WHAT_CHECK Ramachandran: -3.272
WCK3 WHAT_CHECK Chi angles: -0.638
WCK4 WHAT_CHECK Backbone: -1.894

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).