SPACI score report for 2grx in ASTRAL 2.07:

PDB Entry: 2grx
SPACI score: 0.09
AEROSPACI score: 0.09

Experiment type: XRAY
Resolution: 3.3
R-factor: 0.284
PCK1 PROCHECK Ramachandran: 2
PCK2 PROCHECK Chi-1 angle: 2
PCK3 PROCHECK H-bonds: 3
WCK1 WHAT_CHECK Packing: -1.937
WCK2 WHAT_CHECK Ramachandran: -3.861
WCK3 WHAT_CHECK Chi angles: -4.169
WCK4 WHAT_CHECK Backbone: -0.471

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).