SPACI score report for 2caz in ASTRAL 1.73:

PDB Entry: 2caz
SPACI score: 0.02
AEROSPACI score: 0.02

Experiment type: XRAY
Resolution: 3.6
R-factor: 0.32917
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 3
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: 0.661
WCK2 WHAT_CHECK Ramachandran: -6.598
WCK3 WHAT_CHECK Chi angles: -4.251
WCK4 WHAT_CHECK Backbone: -6.044

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).