SPACI score report for 1b3j in ASTRAL 2.07:

PDB Entry: 1b3j
SPACI score: 0.13
AEROSPACI score: 0.13

Experiment type: XRAY
Resolution: 3
R-factor: 0.246
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 4
PCK3 PROCHECK H-bonds: 3
WCK1 WHAT_CHECK Packing: -2.485
WCK2 WHAT_CHECK Ramachandran: -4.451
WCK3 WHAT_CHECK Chi angles: -6.288
WCK4 WHAT_CHECK Backbone: -1.004

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).