SPACI score report for 2gm4 in ASTRAL 2.07:

PDB Entry: 2gm4
SPACI score: 0.06
AEROSPACI score: 0.06 (mutant; see below)

Experiment type: XRAY
Resolution: 3.5
R-factor: 0.282
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 3
PCK3 PROCHECK H-bonds: 3
WCK1 WHAT_CHECK Packing: -2.504
WCK2 WHAT_CHECK Ramachandran: -4.962
WCK3 WHAT_CHECK Chi angles: -5.728
WCK4 WHAT_CHECK Backbone: -1.071

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 d1gdta1; automatically matched to d1gdta2"

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).