SPACI score report for 1f52 in ASTRAL 2.05:

PDB Entry: 1f52
SPACI score: 0.27
AEROSPACI score: 0.27

Experiment type: XRAY
Resolution: 2.49
R-factor: 0.243
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 2
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -1.824
WCK2 WHAT_CHECK Ramachandran: -3.288
WCK3 WHAT_CHECK Chi angles: -3.164
WCK4 WHAT_CHECK Backbone: -1.294

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).