SPACI score report for 1pto in ASTRAL 1.59:

PDB Entry: 1pto
SPACI score: 0.18
AEROSPACI score: 0.18

Experiment type: XRAY
Resolution: 3.5
R-factor: 0.183
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 3
PCK3 PROCHECK H-bonds: 3
WCK1 WHAT_CHECK Packing: -2.788
WCK2 WHAT_CHECK Ramachandran: -3.544
WCK3 WHAT_CHECK Chi angles: -3.019
WCK4 WHAT_CHECK Backbone: -1.099

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).