SPACI score report for 2anb in ASTRAL 2.07:

PDB Entry: 2anb
SPACI score: 0.23
AEROSPACI score: 0.23

Experiment type: XRAY
Resolution: 2.9
R-factor: 0.205
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 3
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -1.204
WCK2 WHAT_CHECK Ramachandran: -2.49
WCK3 WHAT_CHECK Chi angles: -4.023
WCK4 WHAT_CHECK Backbone: -0.075

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).