SPACI score report for 1yt2 in ASTRAL 2.08:

PDB Entry: 1yt2
SPACI score: 0.19
AEROSPACI score: 0.19

Experiment type: XRAY
Resolution: 3.25
R-factor: 0.252
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 1
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -1.886
WCK2 WHAT_CHECK Ramachandran: -3.711
WCK3 WHAT_CHECK Chi angles: -1.353
WCK4 WHAT_CHECK Backbone: 0.362

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).