SPACI score report for 2y6o in ASTRAL 2.08:

PDB Entry: 2y6o
SPACI score: 0.62
AEROSPACI score: 0.62

Experiment type: XRAY
Resolution: 1.54
R-factor: 0.1811
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 1
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -0.703
WCK2 WHAT_CHECK Ramachandran: 0.184
WCK3 WHAT_CHECK Chi angles: 0.977
WCK4 WHAT_CHECK Backbone: 1.267

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).