SPACI score report for 4fc3 in ASTRAL 2.04:

PDB Entry: 4fc3
SPACI score: 0.37
AEROSPACI score: 0.37

Experiment type: XRAY
Resolution: 2.26
R-factor: 0.221
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 1
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -0.035
WCK2 WHAT_CHECK Ramachandran: -1.251
WCK3 WHAT_CHECK Chi angles: -0.174
WCK4 WHAT_CHECK Backbone: 4.316

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).