SPACI score report for 1a7o in ASTRAL 1.57:

PDB Entry: 1a7o
SPACI score: 0.46
AEROSPACI score: 0.46 (mutant; see below)

Experiment type: XRAY
Resolution: 2
R-factor: 0.167
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 2
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -1.335
WCK2 WHAT_CHECK Ramachandran: -0.306
WCK3 WHAT_CHECK Chi angles: -1.157
WCK4 WHAT_CHECK Backbone: -0.012

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: "Fv fragment only; mutant; part of Fv D1.3"

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).