SPACI score report for 1mlb in ASTRAL 1.55:

PDB Entry: 1mlb
SPACI score: 0.38
AEROSPACI score: 0.38

Experiment type: XRAY
Resolution: 2.1
R-factor: 0.181
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 3
PCK3 PROCHECK H-bonds: 3
WCK1 WHAT_CHECK Packing: -1.872
WCK2 WHAT_CHECK Ramachandran: -1.024
WCK3 WHAT_CHECK Chi angles: -2.497
WCK4 WHAT_CHECK Backbone: 0.08

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).