SPACI score report for 1un5 in ASTRAL 2.07:

PDB Entry: 1un5
SPACI score: 0.3
AEROSPACI score: -1.7 (chimer; see below)

Experiment type: XRAY
Resolution: 2.6
R-factor: 0.208
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 1
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -2.217
WCK2 WHAT_CHECK Ramachandran: -3.329
WCK3 WHAT_CHECK Chi angles: -2.672
WCK4 WHAT_CHECK Backbone: -1.062

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: "angiogenin/RNase A chimera ARH-II"

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).