SPACI score report for 2ian in ASTRAL 1.73:

PDB Entry: 2ian
SPACI score: 0.24
AEROSPACI score: 0.24 (mutant; see below)

Experiment type: XRAY
Resolution: 2.8
R-factor: 0.225
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 2
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: 1.136
WCK2 WHAT_CHECK Ramachandran: -1.638
WCK3 WHAT_CHECK Chi angles: -2.945
WCK4 WHAT_CHECK Backbone: -5.614

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: "mutant; automatically matched to d1k2da1; automatically matched to d1k2da2; automatically matched to d1d5xb1; automatically matched to d1d5xb2; automated match to d1qrnd2; automated match to d1qrnd1; automated match to d1qsee2; automated match to d1qrne1; automated match to d1jwua1; automated match to d1jwua2; automated match to d1klub1; automated match to d1klub2; automated match to d1pywa1; automated match to d1pywa2"

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).