SPACI score report for 1xhe in ASTRAL 2.02:

PDB Entry: 1xhe
SPACI score: 0.28
AEROSPACI score: 0.28 (mutant; see below)

Experiment type: XRAY
Resolution: 2.5
R-factor: 0.215
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 3
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -0.303
WCK2 WHAT_CHECK Ramachandran: -1.579
WCK3 WHAT_CHECK Chi angles: -3.756
WCK4 WHAT_CHECK Backbone: 0.515

The AEROSPACI score for this entry is lower than the SPACI score because human-curated comments on the entry in SCOPe contain the phrase mutant. The full comment is: "mutant; automatically matched to 1XHE A:2-122; automated match to d1mvoa_"

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).