SPACI score report for 2f06 in ASTRAL 1.73:

PDB Entry: 2f06
SPACI score: 0.39
AEROSPACI score: 0.39

Experiment type: XRAY
Resolution: 2.1
R-factor: 0.205
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 2
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: 0.664
WCK2 WHAT_CHECK Ramachandran: -0.767
WCK3 WHAT_CHECK Chi angles: -1.912
WCK4 WHAT_CHECK Backbone: -4.06

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).