SPACI score report for 1koh in ASTRAL 1.61:

PDB Entry: 1koh
SPACI score: 0.01
AEROSPACI score: 0.01 (mutant; see below)

Experiment type: XRAY
Resolution: 3.8
R-factor: 0.275
PCK1 PROCHECK Ramachandran: 4
PCK2 PROCHECK Chi-1 angle: 2
PCK3 PROCHECK H-bonds: 3
WCK1 WHAT_CHECK Packing: -4.817
WCK2 WHAT_CHECK Ramachandran: -6.19
WCK3 WHAT_CHECK Chi angles: -2.846
WCK4 WHAT_CHECK Backbone: -5.331

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"

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).