SPACI score report for 1yqs in ASTRAL 2.07:

PDB Entry: 1yqs
SPACI score: 1.01
AEROSPACI score: 1.01

Experiment type: XRAY
Resolution: 1.05
R-factor: 0.114
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 1
PCK3 PROCHECK H-bonds: 1
WCK1 WHAT_CHECK Packing: 1.444
WCK2 WHAT_CHECK Ramachandran: 0.912
WCK3 WHAT_CHECK Chi angles: 0.661
WCK4 WHAT_CHECK Backbone: 0.808

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).