SPACI score report for 1ldk in ASTRAL 1.65:

PDB Entry: 1ldk
SPACI score: 0.1
AEROSPACI score: 0.1

Experiment type: XRAY
Resolution: 3.1
R-factor: 0.289
PCK1 PROCHECK Ramachandran: 2
PCK2 PROCHECK Chi-1 angle: 2
PCK3 PROCHECK H-bonds: 3
WCK1 WHAT_CHECK Packing: -4.135
WCK2 WHAT_CHECK Ramachandran: -5.928
WCK3 WHAT_CHECK Chi angles: -2.151
WCK4 WHAT_CHECK Backbone: -3.713

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).