SPACI score report for 1u4e in ASTRAL 2.06:

PDB Entry: 1u4e
SPACI score: 0.38
AEROSPACI score: 0.38

Experiment type: XRAY
Resolution: 2.09
R-factor: 0.196
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 3
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -1.81
WCK2 WHAT_CHECK Ramachandran: -1.075
WCK3 WHAT_CHECK Chi angles: -3.442
WCK4 WHAT_CHECK Backbone: 2.669

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).