SPACI score report for 3n2g in ASTRAL 2.07:

PDB Entry: 3n2g
SPACI score: 0.06
AEROSPACI score: 0.06

Experiment type: XRAY
Resolution: 4
R-factor: 0.211
PCK1 PROCHECK Ramachandran: 2
PCK2 PROCHECK Chi-1 angle: 4
PCK3 PROCHECK H-bonds: 3
WCK1 WHAT_CHECK Packing: -4.206
WCK2 WHAT_CHECK Ramachandran: -5.586
WCK3 WHAT_CHECK Chi angles: -6.913
WCK4 WHAT_CHECK Backbone: 0.532

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).