SPACI score report for 1n1i in ASTRAL 1.63:

PDB Entry: 1n1i
SPACI score: 0.29
AEROSPACI score: 0.29

Experiment type: XRAY
Resolution: 2.4
R-factor: 0.234
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 2
PCK3 PROCHECK H-bonds: 3
WCK1 WHAT_CHECK Packing: -0.968
WCK2 WHAT_CHECK Ramachandran: -0.776
WCK3 WHAT_CHECK Chi angles: 0.116
WCK4 WHAT_CHECK Backbone: -1.172

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).