SPACI score report for 1vpo in ASTRAL 2.06:

PDB Entry: 1vpo
SPACI score: 0.37
AEROSPACI score: -1.63 (chimer; see below)

Experiment type: XRAY
Resolution: 2.15
R-factor: 0.211
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 2
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -0.24
WCK2 WHAT_CHECK Ramachandran: -1.933
WCK3 WHAT_CHECK Chi angles: -1.623
WCK4 WHAT_CHECK Backbone: 0.032

The AEROSPACI score for this entry is lower than the SPACI score because human-curated comments on the entry in SCOPe contain the phrase chimer. The full comment is: "MQ P18527 P01863 # natural chimera; anti-testosterone antibody (Fab); MQ P01631 P01837"

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).