SPACI score report for 1r76 in ASTRAL 2.07:

PDB Entry: 1r76
SPACI score: 0.32
AEROSPACI score: 0.32

Experiment type: XRAY
Resolution: 2.65
R-factor: 0.198
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 1
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -0.999
WCK2 WHAT_CHECK Ramachandran: -2.325
WCK3 WHAT_CHECK Chi angles: -0.456
WCK4 WHAT_CHECK Backbone: 2.059

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).