SPACI score report for 3aub in ASTRAL 2.08:

PDB Entry: 3aub
SPACI score: 0.97
AEROSPACI score: 0.97

Experiment type: XRAY
Resolution: 1
R-factor: 0.167
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 2
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -3.981
WCK2 WHAT_CHECK Ramachandran: 0.238
WCK3 WHAT_CHECK Chi angles: 1.685
WCK4 WHAT_CHECK Backbone: 2.17

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).