SPACI score report for 3nmo in ASTRAL 2.07:

PDB Entry: 3nmo
SPACI score: 0.17
AEROSPACI score: 0.17

Experiment type: XRAY
Resolution: 3.1
R-factor: 0.265
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 2
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -0.242
WCK2 WHAT_CHECK Ramachandran: -3.49
WCK3 WHAT_CHECK Chi angles: -2.999
WCK4 WHAT_CHECK Backbone: 0.086

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).