SPACI score report for 1yyo in ASTRAL 2.05:

PDB Entry: 1yyo
SPACI score: 0.25
AEROSPACI score: 0.25

Experiment type: XRAY
Resolution: 2.9
R-factor: 0.223
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 1
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -1.449
WCK2 WHAT_CHECK Ramachandran: -5
WCK3 WHAT_CHECK Chi angles: -2.089
WCK4 WHAT_CHECK Backbone: -0.039

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).