SPACI score report for 3cr9 in ASTRAL 2.05:

PDB Entry: 3cr9
SPACI score: 0.16
AEROSPACI score: 0.16

Experiment type: XRAY
Resolution: 3.49
R-factor: 0.207
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 3
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -1.886
WCK2 WHAT_CHECK Ramachandran: -4.401
WCK3 WHAT_CHECK Chi angles: -4.204
WCK4 WHAT_CHECK Backbone: -1.928

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).