SPACI score report for 3l3g in ASTRAL 2.02:

PDB Entry: 3l3g
SPACI score: 0.42
AEROSPACI score: 0.42

Experiment type: XRAY
Resolution: 2.1
R-factor: 0.207
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 1
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: 0.441
WCK2 WHAT_CHECK Ramachandran: 0.352
WCK3 WHAT_CHECK Chi angles: -0.312
WCK4 WHAT_CHECK Backbone: 1.206

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).