SPACI score report for 1g5g in ASTRAL 1.59:

PDB Entry: 1g5g
SPACI score: 0.15
AEROSPACI score: 0.15

Experiment type: XRAY
Resolution: 3.3
R-factor: 0.224
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 3
PCK3 PROCHECK H-bonds: 3
WCK1 WHAT_CHECK Packing: -2.55
WCK2 WHAT_CHECK Ramachandran: -4.323
WCK3 WHAT_CHECK Chi angles: -3.475
WCK4 WHAT_CHECK Backbone: -0.377

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).