SPACI score report for 3cf5 in ASTRAL 2.03:

PDB Entry: 3cf5
SPACI score: 0.05
AEROSPACI score: 0.05

Experiment type: XRAY
Resolution: 3.3
R-factor: 0.276
PCK1 PROCHECK Ramachandran: 3
PCK2 PROCHECK Chi-1 angle: 3
PCK3 PROCHECK H-bonds: 3
WCK1 WHAT_CHECK Packing: -5.346
WCK2 WHAT_CHECK Ramachandran: -7.308
WCK3 WHAT_CHECK Chi angles: -4.831
WCK4 WHAT_CHECK Backbone: -2.543

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).