SPACI score report for 1vkd in ASTRAL 1.69:

PDB Entry: 1vkd
SPACI score: 0.45
AEROSPACI score: 0.45

Experiment type: XRAY
Resolution: 2.1
R-factor: 0.164
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 1
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: 0.497
WCK2 WHAT_CHECK Ramachandran: -1.311
WCK3 WHAT_CHECK Chi angles: -0.132
WCK4 WHAT_CHECK Backbone: -5.739

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).