SPACI score report for 1jn6 in ASTRAL 1.61:

PDB Entry: 1jn6
SPACI score: 0.24
AEROSPACI score: 0.24

Experiment type: XRAY
Resolution: 2.7
R-factor: 0.223
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 3
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -0.702
WCK2 WHAT_CHECK Ramachandran: -2.652
WCK3 WHAT_CHECK Chi angles: -2.551
WCK4 WHAT_CHECK Backbone: -0.34

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).