SPACI score report for 1xwl in ASTRAL 1.59:

PDB Entry: 1xwl
SPACI score: 0.46
AEROSPACI score: 0.46

Experiment type: XRAY
Resolution: 1.7
R-factor: 0.254
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 2
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: 0.985
WCK2 WHAT_CHECK Ramachandran: 0.35
WCK3 WHAT_CHECK Chi angles: -1.139
WCK4 WHAT_CHECK Backbone: 0.392

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).