SPACI score report for 1brs in ASTRAL 1.55:

WARNING! The SPACI score for this entry is not valid. This is not an X-ray structure, so the resolution and R-factor listed may be arbitrary and not valid.

PDB Entry: 1brs
SPACI score: 0.46 (not valid)
AEROSPACI score: 0.46 (not valid) (mutant; see below)

Experiment type: -
Resolution: 2
R-factor: 0.172
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 2
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: 2.595
WCK2 WHAT_CHECK Ramachandran: -0.239
WCK3 WHAT_CHECK Chi angles: -0.646
WCK4 WHAT_CHECK Backbone: 0.936

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"

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).