SPACI score report for 1e6j in ASTRAL 1.71:

PDB Entry: 1e6j
SPACI score: 0.25
AEROSPACI score: 0.25 (mutant; see below)

Experiment type: XRAY
Resolution: 3
R-factor: 0.21
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 1
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: 0.821
WCK2 WHAT_CHECK Ramachandran: -2.166
WCK3 WHAT_CHECK Chi angles: -1.548
WCK4 WHAT_CHECK Backbone: -5.936

The AEROSPACI score for this entry is lower than the SPACI score because human-curated comments on the entry in SCOP contain the phrase mutant. The full comment is: "mutant; part of Fab 13B5 against HIV-1 capsid protein p24"

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).