SPACI score report for 2onh in ASTRAL 2.07:

PDB Entry: 2onh
SPACI score: 0.2
AEROSPACI score: 0.2

Experiment type: XRAY
Resolution: 2.7
R-factor: 0.206
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 4
PCK3 PROCHECK H-bonds: 3
WCK1 WHAT_CHECK Packing: -2.218
WCK2 WHAT_CHECK Ramachandran: -6.143
WCK3 WHAT_CHECK Chi angles: -6.53
WCK4 WHAT_CHECK Backbone: -1.871

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).