SPACI score report for 1hhk in ASTRAL 1.73:

WARNING! The SPACI score for this entry is not valid. This is not an X-ray structure, so the resolution and R-factor listed may be arbitrary and not valid.

PDB Entry: 1hhk
SPACI score: 0.28 (not valid)
AEROSPACI score: 0.28 (not valid)

Experiment type: -
Resolution: 2.5
R-factor: 0.262
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 1
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: 2.36
WCK2 WHAT_CHECK Ramachandran: 0.216
WCK3 WHAT_CHECK Chi angles: -1.002
WCK4 WHAT_CHECK Backbone: -3.98

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).