SPACI score report for 1p3q in ASTRAL 2.07:

WARNING! The SPACI score for this entry is not valid. The R-factor is not available and an abitrary R-factor has been used. The PROCHECK parameters for this entry could not be obtained, and poor results have been arbitrarily assumed.

PDB Entry: 1p3q
SPACI score: 0.41 (not valid)
AEROSPACI score: -1.59 (not valid) (disorder; see below)

Experiment type: XRAY
Resolution: 1.7
R-factor: 0.25
PCK1 PROCHECK Ramachandran: N/A
PCK2 PROCHECK Chi-1 angle: N/A
WCK1 WHAT_CHECK Packing: -0.8
WCK2 WHAT_CHECK Ramachandran: -0.834
WCK3 WHAT_CHECK Chi angles: -0.037
WCK4 WHAT_CHECK Backbone: 4.804

The AEROSPACI score for this entry is lower than the SPACI score because human-curated comments on the entry in SCOPe contain the phrase disorder. The full comment is: "partly disordered, helix-swapped homodimer; annotated as bovine in PDB, identical to human sequence"

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).