SPACI score report for 2at8 in ASTRAL 2.02:

PDB Entry: 2at8
SPACI score: 0.98
AEROSPACI score: 0.98

Experiment type: XRAY
Resolution: 1
R-factor: 0.166
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 1
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -1.565
WCK2 WHAT_CHECK Ramachandran: 0.068
WCK3 WHAT_CHECK Chi angles: 0.099
WCK4 WHAT_CHECK Backbone: 1.072

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).