SPACI score report for 2b12 in ASTRAL 1.73:

PDB Entry: 2b12
SPACI score: 0.13
AEROSPACI score: 0.13

Experiment type: XRAY
Resolution: 3.02
R-factor: 0.277
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 3
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -2.354
WCK2 WHAT_CHECK Ramachandran: -4.121
WCK3 WHAT_CHECK Chi angles: -4.044
WCK4 WHAT_CHECK Backbone: -4.212

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).