SPACI score report for 3b08 in ASTRAL 2.07:

PDB Entry: 3b08
SPACI score: 0.57
AEROSPACI score: 0.57

Experiment type: XRAY
Resolution: 1.7
R-factor: 0.175
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 1
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -0.879
WCK2 WHAT_CHECK Ramachandran: 1.171
WCK3 WHAT_CHECK Chi angles: 1.332
WCK4 WHAT_CHECK Backbone: 4.164

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).