SPACI score report for 2uy6 in ASTRAL 1.75:

PDB Entry: 2uy6
SPACI score: 0.36
AEROSPACI score: 0.36 (mutant; see below)

Experiment type: XRAY
Resolution: 2.5
R-factor: 0.222
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 2
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -2.019
WCK2 WHAT_CHECK Ramachandran: -2.051
WCK3 WHAT_CHECK Chi angles: -1.777
WCK4 WHAT_CHECK Backbone: -0.198

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 d3dpa_1; automatically matched to d3dpa_2; automated match to d1pdka1; automated match to d1pdka2; automated match to d2uy7b1"

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).