SPACI score report for 3rcg in ASTRAL 2.04:

PDB Entry: 3rcg
SPACI score: 1.09
AEROSPACI score: 1.09

Experiment type: XRAY
Resolution: 0.97
R-factor: 0.091
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 1
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -1.684
WCK2 WHAT_CHECK Ramachandran: -0.574
WCK3 WHAT_CHECK Chi angles: 0.273
WCK4 WHAT_CHECK Backbone: 0.579

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).