SPACI score report for 2fbb in ASTRAL 2.06:

PDB Entry: 2fbb
SPACI score: 0.66
AEROSPACI score: 0.66

Experiment type: XRAY
Resolution: 1.46
R-factor: 0.183
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 1
PCK3 PROCHECK H-bonds: 1
WCK1 WHAT_CHECK Packing: -0.812
WCK2 WHAT_CHECK Ramachandran: -0.847
WCK3 WHAT_CHECK Chi angles: -0.371
WCK4 WHAT_CHECK Backbone: 0.003

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).