SPACI score report for 3rgv in ASTRAL 2.06:

PDB Entry: 3rgv
SPACI score: 0.23
AEROSPACI score: 0.23

Experiment type: XRAY
Resolution: 2.9
R-factor: 0.205
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 3
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -1.612
WCK2 WHAT_CHECK Ramachandran: -3.795
WCK3 WHAT_CHECK Chi angles: -5.373
WCK4 WHAT_CHECK Backbone: 1.911

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).