SPACI score report for 2j6m in ASTRAL 2.05:

PDB Entry: 2j6m
SPACI score: 0.21
AEROSPACI score: 0.21

Experiment type: XRAY
Resolution: 3.1
R-factor: 0.202
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 2
PCK3 PROCHECK H-bonds: 3
WCK1 WHAT_CHECK Packing: -1.988
WCK2 WHAT_CHECK Ramachandran: -4.776
WCK3 WHAT_CHECK Chi angles: -2.879
WCK4 WHAT_CHECK Backbone: -0.812

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).