SPACI score report for 3r72 in ASTRAL 2.05:

PDB Entry: 3r72
SPACI score: 0.89
AEROSPACI score: 0.89

Experiment type: XRAY
Resolution: 1.15
R-factor: 0.153
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 1
PCK3 PROCHECK H-bonds: 1
WCK1 WHAT_CHECK Packing: -1.484
WCK2 WHAT_CHECK Ramachandran: 0.471
WCK3 WHAT_CHECK Chi angles: 0.66
WCK4 WHAT_CHECK Backbone: 5.25

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).