SPACI score report for 1bz1 in ASTRAL 2.08:

PDB Entry: 1bz1
SPACI score: 0.6
AEROSPACI score: 0.6

Experiment type: XRAY
Resolution: 1.59
R-factor: 0.17
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 2
PCK3 PROCHECK H-bonds: 1
WCK1 WHAT_CHECK Packing: 0.144
WCK2 WHAT_CHECK Ramachandran: 0.043
WCK3 WHAT_CHECK Chi angles: -2.213
WCK4 WHAT_CHECK Backbone: 1.046

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).