SPACI score report for 1i1g in ASTRAL 1.59:

PDB Entry: 1i1g
SPACI score: 0.11
AEROSPACI score: 0.11

Experiment type: XRAY
Resolution: 2.9
R-factor: 0.316
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 3
PCK3 PROCHECK H-bonds: 3
WCK1 WHAT_CHECK Packing: -0.491
WCK2 WHAT_CHECK Ramachandran: -4.343
WCK3 WHAT_CHECK Chi angles: -2.549
WCK4 WHAT_CHECK Backbone: -0.025

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).