SPACI score report for 3nju in ASTRAL 2.07:

PDB Entry: 3nju
SPACI score: 0.68
AEROSPACI score: 0.68

Experiment type: XRAY
Resolution: 1.4
R-factor: 0.177
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 1
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -1.828
WCK2 WHAT_CHECK Ramachandran: -0.73
WCK3 WHAT_CHECK Chi angles: 0.106
WCK4 WHAT_CHECK Backbone: -0.354

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).