SPACI score report for 1uw4 in ASTRAL 1.69:

PDB Entry: 1uw4
SPACI score: 0.47
AEROSPACI score: 0.47

Experiment type: XRAY
Resolution: 1.95
R-factor: 0.20503
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 1
PCK3 PROCHECK H-bonds: 1
WCK1 WHAT_CHECK Packing: 0.892
WCK2 WHAT_CHECK Ramachandran: 0.404
WCK3 WHAT_CHECK Chi angles: -0.228
WCK4 WHAT_CHECK Backbone: -3.214

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).