SPACI score report for 1bf6 in ASTRAL 2.08:

PDB Entry: 1bf6
SPACI score: 0.53
AEROSPACI score: 0.53

Experiment type: XRAY
Resolution: 1.7
R-factor: 0.204
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 1
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -0.046
WCK2 WHAT_CHECK Ramachandran: -0.986
WCK3 WHAT_CHECK Chi angles: 0.054
WCK4 WHAT_CHECK Backbone: 2.635

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).