SPACI score report for 2sfa in ASTRAL 1.57:

PDB Entry: 2sfa
SPACI score: 0.57
AEROSPACI score: 0.57

Experiment type: XRAY
Resolution: 1.6
R-factor: 0.182
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 2
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: 2.898
WCK2 WHAT_CHECK Ramachandran: -0.469
WCK3 WHAT_CHECK Chi angles: -1.076
WCK4 WHAT_CHECK Backbone: -0.518

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).