SPACI score report for 2qnh in ASTRAL 2.07:

WARNING! The SPACI score for this entry is not valid. The PROCHECK parameters for this entry could not be obtained, and poor results have been arbitrarily assumed.

PDB Entry: 2qnh
SPACI score: -0.05 (not valid)
AEROSPACI score: -0.05 (not valid)

Experiment type: XRAY
Resolution: 3.83
R-factor: 0.327
PCK1 PROCHECK Ramachandran: N/A
PCK2 PROCHECK Chi-1 angle: N/A
WCK1 WHAT_CHECK Packing: -5.25
WCK2 WHAT_CHECK Ramachandran: -7.278
WCK3 WHAT_CHECK Chi angles: -5.319
WCK4 WHAT_CHECK Backbone: -3.107

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).