SPACI score report for 1xdk in ASTRAL 1.71:

PDB Entry: 1xdk
SPACI score: 0.17
AEROSPACI score: 0.17

Experiment type: XRAY
Resolution: 2.9
R-factor: 0.253
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 3
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: 0.012
WCK2 WHAT_CHECK Ramachandran: -5.623
WCK3 WHAT_CHECK Chi angles: -3.91
WCK4 WHAT_CHECK Backbone: -3.858

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).