SPACI score report for 1e6n in ASTRAL 2.07:

PDB Entry: 1e6n
SPACI score: 0.39
AEROSPACI score: 0.39

Experiment type: XRAY
Resolution: 2.25
R-factor: 0.189
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 1
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -1.542
WCK2 WHAT_CHECK Ramachandran: -1.797
WCK3 WHAT_CHECK Chi angles: -1.39
WCK4 WHAT_CHECK Backbone: -0.35

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).