SPACI score report for 1mn3 in ASTRAL 1.71:

PDB Entry: 1mn3
SPACI score: 0.35
AEROSPACI score: 0.35

Experiment type: XRAY
Resolution: 2.3
R-factor: 0.244
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 1
PCK3 PROCHECK H-bonds: 1
WCK1 WHAT_CHECK Packing: 0.091
WCK2 WHAT_CHECK Ramachandran: 1.389
WCK3 WHAT_CHECK Chi angles: -0.927
WCK4 WHAT_CHECK Backbone: 0.159

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).