SPACI score report for 1i5n in ASTRAL 2.01:

PDB Entry: 1i5n
SPACI score: 0.42
AEROSPACI score: 0.42

Experiment type: XRAY
Resolution: 2.14
R-factor: 0.21
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 1
PCK3 PROCHECK H-bonds: 1
WCK1 WHAT_CHECK Packing: 0.313
WCK2 WHAT_CHECK Ramachandran: 1.292
WCK3 WHAT_CHECK Chi angles: -1.127
WCK4 WHAT_CHECK Backbone: 1.772

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).