SPACI score report for 3bz0 in ASTRAL 2.06:

PDB Entry: 3bz0
SPACI score: 0.22
AEROSPACI score: 0.22

Experiment type: XRAY
Resolution: 2.7
R-factor: 0.235
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 3
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -2.586
WCK2 WHAT_CHECK Ramachandran: -4.457
WCK3 WHAT_CHECK Chi angles: -5.184
WCK4 WHAT_CHECK Backbone: 2.323

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).