SPACI score report for 2iay in ASTRAL 1.75:

PDB Entry: 2iay
SPACI score: 0.99
AEROSPACI score: 0.99

Experiment type: XRAY
Resolution: 1.2
R-factor: 0.121
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 1
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -0.712
WCK2 WHAT_CHECK Ramachandran: 1.024
WCK3 WHAT_CHECK Chi angles: 0.926
WCK4 WHAT_CHECK Backbone: 1.443

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).