SPACI score report for 4lc6 in ASTRAL 2.07:

PDB Entry: 4lc6
SPACI score: 0.76
AEROSPACI score: 0.76

Experiment type: XRAY
Resolution: 1.32
R-factor: 0.151
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 1
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -1.204
WCK2 WHAT_CHECK Ramachandran: -0.636
WCK3 WHAT_CHECK Chi angles: 1.871
WCK4 WHAT_CHECK Backbone: 3.219

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).