SPACI score report for 1vlx in ASTRAL 1.55:

PDB Entry: 1vlx
SPACI score: 0.48
AEROSPACI score: 0.48

Experiment type: XRAY
Resolution: 1.9
R-factor: 0.175
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 2
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -0.431
WCK2 WHAT_CHECK Ramachandran: -0.444
WCK3 WHAT_CHECK Chi angles: -1.488
WCK4 WHAT_CHECK Backbone: 0.417

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).