SPACI score report for 2g4d in ASTRAL 2.08:

WARNING! The SPACI score for this entry is not valid. The R-factor is not available and an abitrary R-factor has been used. The PROCHECK parameters for this entry could not be obtained, and poor results have been arbitrarily assumed.

PDB Entry: 2g4d
SPACI score: 0.16 (not valid)
AEROSPACI score: 0.16 (not valid) (mutant; see below)

Experiment type: XRAY
Resolution: 2.8
R-factor: 0.25
PCK1 PROCHECK Ramachandran: N/A
PCK2 PROCHECK Chi-1 angle: N/A
PCK3 PROCHECK H-bonds: N/A
WCK1 WHAT_CHECK Packing: -1.121
WCK2 WHAT_CHECK Ramachandran: -2.879
WCK3 WHAT_CHECK Chi angles: -2.947
WCK4 WHAT_CHECK Backbone: 3.81

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 d1tgzb_; automatically matched to 2G4D A:440-643; automated match to d1y8rc_; automated match to d2g4da1"

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).