SPACI score report for 1r22 in ASTRAL 2.06:

PDB Entry: 1r22
SPACI score: 0.32
AEROSPACI score: 0.32

Experiment type: XRAY
Resolution: 2.3
R-factor: 0.23
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 2
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -0.559
WCK2 WHAT_CHECK Ramachandran: -2.748
WCK3 WHAT_CHECK Chi angles: -3.117
WCK4 WHAT_CHECK Backbone: 0.46

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).