SPACI score report for 1bww in ASTRAL 1.67:

PDB Entry: 1bww
SPACI score: 0.55
AEROSPACI score: 0.55 (mutant; see below)

Experiment type: XRAY
Resolution: 1.7
R-factor: 0.1824
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 2
PCK3 PROCHECK H-bonds: 1
WCK1 WHAT_CHECK Packing: 1.79
WCK2 WHAT_CHECK Ramachandran: 1.139
WCK3 WHAT_CHECK Chi angles: 0.187
WCK4 WHAT_CHECK Backbone: -5.613

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; VL dimer of Bence-Jones protein REI"

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).