SPACI score report for 1xw8 in ASTRAL 2.05:

PDB Entry: 1xw8
SPACI score: 0.38
AEROSPACI score: 0.38

Experiment type: XRAY
Resolution: 2
R-factor: 0.241
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 2
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -1.85
WCK2 WHAT_CHECK Ramachandran: -1.183
WCK3 WHAT_CHECK Chi angles: -2.485
WCK4 WHAT_CHECK Backbone: 0.521

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).