SPACI score report for 1c5x in ASTRAL 1.75:

PDB Entry: 1c5x
SPACI score: 0.57
AEROSPACI score: 0.57

Experiment type: XRAY
Resolution: 1.75
R-factor: 0.195
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 2
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -1.048
WCK2 WHAT_CHECK Ramachandran: -3.183
WCK3 WHAT_CHECK Chi angles: -1.639
WCK4 WHAT_CHECK Backbone: 0.342

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).