SPACI score report for 1aif in ASTRAL 1.55:

PDB Entry: 1aif
SPACI score: 0.15
AEROSPACI score: 0.15

Experiment type: XRAY
Resolution: 2.9
R-factor: 0.22
PCK1 PROCHECK Ramachandran: 3
PCK2 PROCHECK Chi-1 angle: 3
PCK3 PROCHECK H-bonds: 3
WCK1 WHAT_CHECK Packing: -5.246
WCK2 WHAT_CHECK Ramachandran: -4.573
WCK3 WHAT_CHECK Chi angles: -3.811
WCK4 WHAT_CHECK Backbone: -2.172

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).