SPACI score report for 1fw8 in ASTRAL 1.63:

PDB Entry: 1fw8
SPACI score: 0.34
AEROSPACI score: -1.66 (permut; see below)

Experiment type: XRAY
Resolution: 2.3
R-factor: 0.211
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 2
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -0.528
WCK2 WHAT_CHECK Ramachandran: -1.771
WCK3 WHAT_CHECK Chi angles: -1.551
WCK4 WHAT_CHECK Backbone: -0.665

The AEROSPACI score for this entry is lower than the SPACI score because human-curated comments on the entry in SCOP contain the phrase permut. The full comment is: "Artificial circular permutation"

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).